Craving that unmistakable mix of savory tuna, tender beef, and garlicky Genovese sauce from the famous Buona Beef sandwich? You’re not alone. The Buona Beef Tuna Genovese copycat recipe is one of the most searched Italian-American sandwiches—and for good reason. This bold and satisfying dish blends two savory worlds: slow-cooked Italian beef and rich, marinated tuna, all tied together by a garlic-heavy Genovese-style sauce.

In this guide, we’ll help you recreate the Buona Beef Tuna Genovese copycat recipe at home, step by step. From choosing the right cuts of meat to simmering the perfect sauce, we’ll make sure you master every detail. Whether you’re a lifelong fan or tasting it for the first time, this homemade version hits all the right notes.

Don’t miss our Tender Slow Cooker Cube Steak Recipe if you’re into hearty, comforting beef dishes.

We’ll walk you through the origins of the dish, expert tips, ingredients, nutritional info, and common pitfalls to avoid. Let’s dive into what makes this sandwich so unforgettable.

The History and Flavor Profile of Buona Beef Tuna Genovese

Origins of the Buona Beef Chain

The Buona Beef name is more than just a sandwich shop—it’s an iconic, family-run legacy in Chicago since 1981. Known for its juicy Italian beef sandwiches, Buona introduced their legendary Tuna Genovese creation as a bold new take on regional Italian flavors. It didn’t take long before the Buona Beef Tuna Genovese copycat recipe became a viral obsession among food bloggers and home chefs alike.

This unique sandwich blends Italian-American comfort food with fresh, Mediterranean ingredients. Buona’s vision redefined how we think about surf-and-turf sandwiches.

What Makes Tuna Genovese Special?

Unlike anything you’ll find at a typical deli, the Tuna Genovese copycat recipe stands out thanks to its luxurious mix of textures and flavors. It combines:

• Slow-roasted beef, thinly sliced and packed with juice
• Marinated tuna, either seared or flaked from fresh cuts
• Genovese sauce, a southern Italian garlic-onion reduction
• Artisan bread, crisp outside and soft within

What elevates this dish is how all components complement without competing—the beef adds depth, the tuna brings richness, and the Genovese sauce ties it together with bold, savory aromatics.

The result? A sandwich that’s hearty, aromatic, and layered with flavor, making the Buona Beef Tuna Genovese copycat recipe a staple worth recreating again and again.

Learn more about homemade curing techniques in our Best Smoked Fish Brine Recipe, which you can use as inspiration for your tuna prep.

Ingredients Breakdown – Tuna, Beef & Genovese Sauce

Sourcing Quality Tuna and Beef

The first step to nailing a true Buona Beef Tuna Genovese copycat recipe is choosing the right proteins. Since this sandwich balances two distinct meats, each needs to shine without overpowering the other.

For the beef, go with:

• Top round roast or sirloin tip – both are lean yet flavorful
• Marinate in beef stock, garlic, oregano, and black pepper
• Slow-cook or oven-roast for tender, sliceable results

For the tuna, consider:

• Fresh ahi tuna or yellowfin steaks, lightly seared or grilled
• If needed, high-quality canned tuna in olive oil can substitute—but choose solid white albacore for best results
• Season with lemon juice, crushed red pepper, and sea salt to brighten its flavor profile

These proteins should complement, not compete. The tuna brings oceanic richness, while the beef provides umami depth, creating that signature surf-and-turf effect.

Discover great ideas like our Best Venison Steak Recipes for more inspiration on handling rich meats.

Decoding the Genovese Sauce Components

The Genovese sauce is the soul of this sandwich—earthy, tangy, and aromatic. While there are many variations, the sauce in this Buona Beef Tuna Genovese copycat recipe focuses on slow-cooked onions, olive oil, and herbs.

Here’s a breakdown of what you’ll need:

• Yellow onions – lots of them, slow-cooked until golden and sweet
• Garlic cloves – crushed and sautéed in olive oil
• Olive oil – extra virgin for richness
• White wine or white balsamic vinegar – for acidity
• Fresh herbs – like rosemary, parsley, and thyme

Optional flavor boosters:

• Anchovy paste (for umami)
• Red pepper flakes (for heat)
• A splash of beef broth (for depth)

Simmer all ingredients over low heat for 30–40 minutes until thickened and caramelized. This aromatic sauce is the glue that binds the tuna and beef together in your sandwich, offering richness and brightness in every bite.

The Genovese sauce is what transforms this from an ordinary sandwich into a layered Italian masterpiece. Getting this part right is crucial for a successful Buona Beef Tuna Genovese copycat recipe.

Step-by-Step Recipe for Tuna Genovese Copycat

When it comes to recreating the Buona Beef Tuna Genovese copycat recipe, the key is precision and patience. The balance of slow-cooked beef, marinated tuna, and Genovese sauce needs layering, not rushing. Follow this step-by-step method to build the flavor from scratch, right in your own kitchen.

Preparing the Beef – Oven, Stovetop, or Slow Cooker

Your beef sets the tone for the sandwich’s meaty foundation. You can prepare it in a few ways, depending on the time you have.

Oven-Roasted Method

• Cut: 2–3 lbs top round roast
• Season: Rub with salt, garlic powder, cracked pepper, and oregano
• Sear: In a hot pan with olive oil, 2 mins each side
• Roast: 275°F for 2.5 hours, covered with foil, in beef broth
• Slice thinly once rested

Stovetop Braise

• Brown beef in olive oil
• Add onions, garlic, rosemary, and 1 cup beef stock
• Cover and simmer on low for 3 hours

Slow Cooker Method (Easiest)

• Place seasoned beef in slow cooker
• Add beef broth, garlic, herbs, and 1 tbsp balsamic vinegar
• Cook on low for 6–8 hours
• Shred or slice to desired texture

For all methods, rest the beef for 10–15 minutes before slicing. This keeps it juicy and flavorful—vital for building the best buona beef tuna genovese copycat recipe.

Making the Tuna Genovese Sauce from Scratch

The tuna portion and Genovese sauce often confuse people—is it separate or mixed? Here’s the trick: you make the sauce separately, then fold in the tuna right before assembling.

Sauce Base:

• 2 cups thinly sliced yellow onions
• 5–6 minced garlic cloves
• 1/4 cup extra virgin olive oil
• 1/4 cup dry white wine or white balsamic
• 1 tsp chopped rosemary
• Salt and pepper to taste
• Pinch of crushed red pepper (optional)

Sauté onions and garlic over medium-low heat in olive oil until caramelized (30–35 mins). Add wine, herbs, and simmer until reduced.

For the Tuna:

• Option 1: Sear fresh ahi/yellowfin tuna steaks for 2 mins per side, then shred
• Option 2: Drain high-quality canned tuna in olive oil, flake gently with fork
• Add tuna to sauce just before serving and heat lightly

This fusion of fish and sauce gives the Buona Beef Tuna Genovese copycat recipe its signature warmth and complexity.

Assembly Steps:

1. Toast Italian sandwich roll until golden
2. Layer sliced beef
3. Spoon over warm tuna Genovese mixture
4. Top with extra sauce if desired
5. Serve immediately

For extra flair, serve it with giardiniera, arugula, or a provolone slice melted on top. The key is keeping the ratios balanced so no single ingredient overpowers the rest.

Assembling the Perfect Buona Beef Tuna Genovese Copycat Sandwich

Creating the ultimate Buona Beef Tuna Genovese copycat recipe isn’t just about ingredients — it’s about how you build the sandwich. From the bread choice to how you layer the tuna, beef, and Genovese sauce, everything plays a role in recreating the flavor you crave.

Choosing the Right Bread

To capture the true texture and bite of the original Buona sandwich, authentic Italian bread is essential. Go for a sturdy roll with a crisp crust and a soft center — think:

• Rustic Italian rolls
• Turano-style loaves (Chicago favorite)
• French demi-baguettes

Avoid sandwich breads that are too soft, as they won’t hold the moisture from the beef and sauce. Toasting is a must — just enough to get a crunch, but not so hard it fights back.

Layering Flavors Like the Original

Now, let’s assemble the Buona Beef Tuna Genovese copycat recipe just like they do in the shop—step by flavorful step:

1. Start with warm, toasted bread, sliced open but not fully separated.
2. Add a generous layer of thin-sliced beef, juicy and still warm.
3. Spoon on the tuna Genovese mixture—warm, savory, and aromatic.
4. Drizzle extra Genovese sauce for added richness.
5. Optional: Add a melted slice of provolone or a few pickled peppers for a sharp contrast.

Every bite of your Buona Beef Tuna Genovese copycat sandwich should offer contrast—warm beef, cool acidic tuna, bold garlic-onion notes, and crispy bread.

Serve immediately with kettle chips, an Italian side salad, or just a chilled glass of red wine. That’s how you bring restaurant flavor straight to your kitchen.

Tips to Enhance Flavor Like a Chef

Want to take your Buona Beef Tuna Genovese copycat recipe from great to unforgettable? The secret lies in the details. Professional chefs rely on tried-and-true techniques that enhance flavor, boost texture, and deliver that restaurant-quality experience. Here’s how you can bring that same magic into your home kitchen.

Marination and Resting Techniques

Your meat — both beef and tuna — needs time to develop flavor. Whether you’re roasting, braising, or searing, resting and marinating are essential.

Beef Tips:

• Marinate your beef with olive oil, garlic, Italian herbs, and beef broth for at least 4 hours or overnight.
• Always let your cooked beef rest for 10–15 minutes before slicing. This locks in moisture and prevents dryness.

Tuna Tips:

• Lightly season fresh tuna steaks with lemon juice, olive oil, and rosemary, then let them sit for 15–20 minutes before searing.
• If you’re using canned tuna, drain and toss it with a splash of vinegar and herbs to freshen the flavor.

These small steps elevate your Buona Beef Tuna Genovese copycat recipe by enhancing every bite — from juicy meat to well-balanced seasoning.

Balancing Acidity, Umami, and Texture

The reason this sandwich is such a hit? It hits all the flavor notes — and texture matters just as much.

• Acidity: Comes from lemon juice, vinegar, or wine in your Genovese sauce. It cuts through the richness of the meat.
• Umami: Beef broth, seared tuna, garlic, and caramelized onions all contribute to that deep, satisfying flavor profile.
• Texture: You want contrast — crispy bread, tender meat, flaky tuna, and silky sauce.

A sandwich without texture is flat. But when each component is thoughtfully prepared, your Buona Beef Tuna Genovese copycat recipe becomes a true culinary experience.

Check out Tender Slow Cooker Cube Steak Recipe for more ideas on keeping beef moist and flavorful with simple techniques.

Health and Nutrition Overview

While indulgent and packed with flavor, the Buona Beef Tuna Genovese copycat recipe can be surprisingly balanced when prepared thoughtfully. Whether you’re counting calories or aiming for a higher protein meal, you can tweak this sandwich to meet your health goals without losing the signature flavor.

Calories and Macros

A typical serving of this Buona Beef Tuna Genovese copycat recipe (including 5 oz beef, 3 oz tuna, 2 tbsp sauce, and bread) averages:

These numbers can vary based on how fatty the beef cut is, what kind of bread you choose, and how much sauce you apply. The high protein content makes this a great option for those on a low-carb or high-protein diet — especially if you go breadless.

Cleaner Substitutes for a Lighter Dish

Trying to reduce fat or carbs? The Buona Beef Tuna Genovese copycat recipe is easily adaptable. Try these swaps to lighten it up:

• Lean beef: Use eye of round or trimmed sirloin to cut fat.
• Tuna packed in water: Instead of olive oil-based tuna, opt for water-packed varieties.
• Lettuce wraps: Ditch the bread entirely and go for a crisp romaine or butter lettuce base.
• Skip the cheese: If using provolone, leave it out for lower calories.
• Add veggies: Layer grilled peppers, onions, or arugula for bulk and fiber.

The result? You still get that savory, Genovese-style flavor bomb — just with fewer calories and more nutrients.

And remember, this recipe is high in omega-3s (from the tuna), protein-rich, and can easily be made dairy-free or gluten-free depending on your preferences.

Variations and Regional Adaptations

One of the reasons the Buona Beef Tuna Genovese copycat recipe has remained popular is its versatility. While the original sandwich is a bold blend of Italian-American flavor, creative home chefs across the country have added their own spin — whether to fit dietary needs, regional ingredients, or just to try something new.

Vegan or Vegetarian Versions

While it may sound impossible, there are inventive ways to create a meatless Buona Beef Tuna Genovese copycat recipe that still satisfies the soul.

Vegan “Tuna” Sub:

• Use mashed chickpeas, diced artichokes, and capers to mimic tuna texture and brininess
• Add vegan mayo, lemon juice, and olive oil for creaminess

Meat-Free “Beef” Base:

• Try seared portobello mushrooms or sliced seitan seasoned with garlic and herbs
• Marinate with soy sauce, smoked paprika, and balsamic vinegar for depth

These swaps bring richness and bite without animal protein. Pair with a vegan Genovese sauce (just olive oil, onions, garlic, and herbs) for a fully plant-based twist.

Spicy or Smoked Fusion Versions

Want to give your Buona Beef Tuna Genovese copycat recipe a flavor twist? Try these regional or fusion-style variations:

Spicy Chicago-Style:

• Add giardiniera or Calabrian chili paste to the sauce
• Use spicy marinated tuna or roast beef crusted with chili flakes

Southern-Style Smoked:

• Smoke the beef over hickory or mesquite
• Mix the tuna with BBQ sauce and caramelized onion for a smoky-sweet Genovese blend

Mediterranean Lean:

• Use grilled eggplant or roasted red peppers for depth
• Swap tuna for brined sardines or anchovy-garlic tapenade

No matter the variation, each spin maintains the spirit of the original Buona Beef Tuna Genovese copycat recipe — bold, layered, and comforting.

Common Mistakes and How to Avoid Them

Even a great recipe like the Buona Beef Tuna Genovese copycat recipe can fall flat if you miss key steps. The sandwich relies on balance — between bold flavors, contrasting textures, and layered ingredients. Below are the most common missteps that can sabotage your homemade version, plus expert fixes.

Overcooking Tuna or Beef

One of the biggest mistakes? Overcooking your protein.

Beef Mistakes:

• Cooking at high heat dries it out fast
• Slicing too early lets juices run out
• Not seasoning well before cooking reduces flavor payoff

Fix: Use low-and-slow cooking methods. Rest meat for 10–15 minutes. Always slice against the grain for tender bites.

Tuna Mistakes:

• Searing too long makes it rubbery
• Using low-quality canned tuna makes it bland or mushy
• Forgetting acid or herbs dulls the flavor

Fix: Sear fresh tuna for 1–2 minutes per side. If using canned, choose solid white albacore in olive oil and brighten with lemon or vinegar.

Precision is key to pulling off the Buona Beef Tuna Genovese copycat recipe at home. Rushing or skipping small steps often results in a sandwich that’s dry, dull, or overpowering.

Overpowering the Genovese Sauce

The Genovese sauce is meant to enhance, not dominate.

Common missteps:

• Using too much garlic (can get bitter if burned)
• Skipping the slow onion caramelization
• Adding too much acid or broth and thinning the sauce

Fix: Cook the onions low and slow until they melt into the oil. Add garlic halfway through to avoid burning. Reduce gently to maintain a thick, jammy texture.

Your sauce should hug the meat, not drown it. Done right, it’s the soul of the Buona Beef Tuna Genovese copycat recipe.

Serving Ideas and Pairings

You’ve prepped the beef, perfected the Genovese sauce, and layered your sandwich like a pro. Now comes the finishing touch—how you serve your Buona Beef Tuna Genovese copycat recipe. The right sides and drinks can turn a humble sandwich into a full Italian-inspired meal.

Wine and Beverage Suggestions

Pairing beverages with a sandwich this flavorful doesn’t need to be complicated. A few options complement the bold beef and savory tuna notes:

• Red Wine: A light-bodied red like Chianti or Pinot Noir highlights the beef without overpowering the tuna.
• White Wine: A crisp Sauvignon Blanc or dry Vermentino balances the richness of the sauce and tuna.
• Beer: Try an amber ale, pale ale, or even a citrusy IPA. They bring contrast to the savory flavors.
• Mocktails: A lemon-rosemary spritzer or cucumber tonic is refreshing and helps cut through the richness.

This sandwich is layered, so your drink should offer contrast and refreshment.

Side Dishes That Elevate the Experience

What you serve with your Buona Beef Tuna Genovese copycat recipe matters. Great sides help enhance the textures and keep the meal balanced. Here are a few options:

For a more Italian-American table, add provolone slices, a drizzle of balsamic glaze, or even a touch of truffle oil on the sandwich.

Pairing matters. When done right, the Buona Beef Tuna Genovese copycat recipe becomes a full dining experience — not just lunch.

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