Buona Beef Tuna Genovese Recipe (Tested Copycat)
The first time I had tuna genovese at Buona Beef, I couldn’t figure out what I was tasting. It wasn’t tomato sauce. It wasn’t gravy. It was something sweeter, deeper, almost caramelized — with this strange little savory backbone I couldn’t place until I got home and started digging through old Neapolitan cookbooks.
That backbone turned out to be tuna. A small can of it, melted into three pounds of onions that had been cooking down for hours.
I tested this buona beef tuna genovese recipe three times before the sauce tasted like what I remembered — not fishy, not sweet-and-nothing-else, just rich. Here’s exactly how I got there.

The sauce is the whole point here. The beef gets tender enough to shred with a fork, but it’s really just along for the ride — the onions are what carry this dish, cooked low and slow until they collapse into something closer to jam than vegetable.
★★★★★ “I made this for my in-laws thinking it would taste like a weird science experiment. It tasted exactly like the Buona Beef version — my father-in-law asked for the recipe twice.” — Denise R., recipe tester (pre-launch)

Why You’ll Love This Buona Beef Tuna Genovese Recipe
- It tastes like the restaurant version, not a guess at it: I tested the tuna timing specifically until the flavor matched what I remembered — savory, not fishy.
- It’s a dump-and-braise dinner: most of the work is slicing onions. The oven does the rest for nearly three hours.
- It feeds a crowd for very little money: one chuck roast and a bag of onions stretch across a full pound of pasta with leftovers.
- It gets better on day two: like most braises, the sauce deepens overnight in the fridge.
Key Ingredients

Chuck roast (3 lbs / 1.4 kg). This cut has enough fat and connective tissue to shred apart after a long braise. Brisket works too, but chuck is cheaper and just as forgiving.
Yellow onions (3 lbs / 1.4 kg, thinly sliced). This is the ingredient that makes it “genovese.” That much onion sounds excessive until you watch it cook down to almost nothing — sweet, dark, and jammy.
Oil-packed tuna (one 5 oz can, drained and flaked). The one nobody expects. Added near the end, it dissolves into the sauce and adds a savory backbone similar to how anchovies work in a puttanesca — you won’t taste “tuna,” you’ll taste depth.
Dry white wine (½ cup). Deglazes the browned bits off the pot and adds acidity to cut through all that sweet onion. A dry vermouth works as a substitute.
Tomato paste (2 tablespoons). Just enough for color and a little tang — this isn’t a tomato sauce, so don’t be tempted to add more.
Parmesan rind (optional, 1 piece). Simmered in with the sauce, it melts into a savory, salty depth. Skip it if you don’t have one; the tuna does most of the heavy lifting anyway.
Ingredient Note: Don’t skip draining the tuna oil before adding it. Extra oil floating on top of an already rich braise makes the finished sauce taste greasy instead of silky.
Equipment You’ll Need
- Heavy Dutch oven — the even heat prevents scorching during the long simmer. A deep, heavy stockpot works if you don’t have one.
- Tongs — for turning the roast while browning and pulling it out to shred later.
- Box grater — for the parmesan rind and for finishing with fresh grated cheese.
- Large colander — for draining a full pound of rigatoni.
Controlling the Onion Breakdown (A Controlled Test)
The variable that actually determines whether this tastes like the restaurant version is how long the onions cook — not the beef. I ran the same recipe three times, changing only the total braise time.

45 minutes: the onions were softened but still held their shape — more like a soubise than a genovese. Flavor was flat.
90 minutes: better, but the sauce still had some bite and a slightly raw onion edge underneath the sweetness.
3 hours: this is the one. The onions had fully broken down into a smooth, glossy, almost caramel-colored sauce with no trace of rawness. This is the texture Buona Beef is actually going for, and it’s non-negotiable — don’t rush this part.
How to Make Buona Beef Tuna Genovese
Before you start: pull the chuck roast out 20 minutes before cooking so it browns evenly, and slice all three pounds of onions before you turn on the stove — it’s the most tedious step, so get it out of the way first.
Step 1 — Brown the beef
Pat the chuck roast dry and season generously with salt and pepper. Sear it in hot olive oil in the Dutch oven, about 4 minutes per side, until deeply browned. You’re not cooking it through here — just building flavor on the crust.

Step 2 — Build the onion base
Remove the beef and set it aside. Add the sliced onions, carrot, celery, and garlic directly into the drippings. Cook over medium-low heat, stirring occasionally, for about 15 minutes until they start to soften and turn translucent.
Step 3 — Deglaze and return the beef
Pour in the white wine and scrape up the browned bits from the bottom of the pot. Stir in the tomato paste, then nestle the beef back into the onions along with the bay leaf and parmesan rind if using. Add just enough water to come halfway up the beef.

Step 4 — Braise low and slow
Cover and simmer on low heat (or in a 325°F / 163°C oven) for about 3 hours, checking occasionally to make sure it’s not scorching on the bottom. You’ll know it’s ready when the onions have fully collapsed into a smooth, deep amber sauce and the beef falls apart with light pressure from a fork.
Step 5 — Shred and stir in the tuna
Pull the beef out, shred it with two forks, and return it to the pot. Stir in the drained, flaked tuna and simmer uncovered for another 20–25 minutes so it melts into the sauce. Taste and adjust salt — the tuna adds saltiness, so go easy until the end.

Step 6 — Toss with pasta and serve
Cook the rigatoni until just shy of al dente, then toss it directly into the sauce with a splash of pasta water to loosen everything. Serve hot, topped with grated parmesan and torn basil.
Pro Tips for Perfect Buona Beef Tuna Genovese
Tip 1: Slice the onions thin, not chunked. Thin half-moons break down evenly over three hours. Thick chunks can still be a little firm in the center even after the full braise time.
Tip 2: Add the tuna at the end, never at the start. I tested adding it with the beef at the beginning of the braise once — three hours of simmering turned it gritty and overpoweringly fishy. Twenty minutes at the end gives you depth without any fish flavor at all.
Tip 3: Don’t skip the parmesan rind if you have one. It’s a small addition with a big payoff — that salty, savory melt is part of what makes the sauce taste like it’s been simmering all day, because it has.
Tip 4: Save some pasta water. A splash loosens the sauce just enough to coat every piece of rigatoni instead of sitting on top of it.
Variations and Substitutions

Dietary Variations:
- Gluten-free: swap the rigatoni for a gluten-free pasta of the same shape. The sauce itself has no flour or gluten in it already.
- Lower-sodium: skip the parmesan rind and use a low-sodium tuna packed in water instead of oil; taste and adjust salt at the very end rather than earlier in the braise.
Flavor Variations:
- Spicy version: add ½ teaspoon crushed red pepper flakes when you build the onion base for a subtle heat underneath the sweetness.
Ingredient Substitutions:
- Chuck roast → brisket (same braise time, slightly leaner)
- White wine → dry vermouth or an extra ½ cup broth with a splash of white wine vinegar
If you’re building out a comfort-food dinner rotation, this pairs well with something lighter to start — my cheesy ranch potatoes and sausage makes a good side if you want to stretch the meal for a bigger crowd.
Troubleshooting
Why is my sauce still watery after 3 hours?
Most likely the lid wasn’t sealing tightly, letting too much liquid escape as steam instead of reducing into the onions. Uncover the pot for the last 30 minutes on a slightly higher heat to let it reduce down to a glossy consistency.
My beef is tough, not shreddable — what happened?
It probably needs more time, not less heat. Chuck roast can look “done” at 2 hours but still resist a fork. Give it another 30–45 minutes covered; it will not overcook in a braise the way it would on a dry sear.
The sauce tastes fishy — did I mess up the tuna?
This happens when the tuna goes in too early or simmers too long. Stir it in during the last 20–25 minutes only, and make sure it’s well-drained before it goes into the pot.
Storage and Make-Ahead
Counter: Not recommended past 2 hours — this is a meat-based sauce and should be refrigerated promptly.
Refrigerator: Store the sauce (with or without pasta mixed in) in an airtight container for up to 4 days. The flavor is actually better on day two.
Freeze: Freeze the sauce alone (without pasta) for up to 3 months in a freezer-safe container. Thaw overnight in the fridge before reheating.
Reheating: Warm gently in a covered saucepan over low heat with a splash of water or broth to loosen the sauce. Toss with freshly cooked pasta rather than freezing it already combined.
Make-Ahead: The sauce can be made up to 2 days ahead and reheated just before serving — ideal for feeding a crowd without last-minute stress.
Frequently Asked Questions
Q: Can I make this buona beef tuna genovese recipe in a slow cooker? A: Yes. Brown the beef and build the onion base on the stovetop first, then transfer everything to a slow cooker on low for 6–7 hours. Stir in the tuna during the last 30 minutes.
Q: Will the tuna make it taste like a fish dish? A: No, not if it’s added correctly. Stirred in near the end, it dissolves into the sauce and adds a savory depth similar to anchovies — you taste richness, not fish.
Q: What pasta shape works best? A: Rigatoni or ziti hold the sauce well because the ridges and tube shape catch the melted onions. Penne is a fine substitute.
Q: Can I use a different cut of beef? A: Brisket works as a 1:1 swap with the same braise time. Leaner cuts like round roast will shred but come out drier.
Q: Do I have to use a parmesan rind? A: No — it’s optional. It adds a savory depth, but the tuna and long braise already do most of the work.
Q: How far ahead can I make this for a dinner party? A: Up to 2 days ahead. Reheat gently on the stove and cook the pasta fresh right before serving.
More Recipes You’ll Love
- Cheesecake Bread — a sweet, tangy quick bread perfect for the next morning after a big Italian dinner
- Dolly’s Chicken and Stuffing Casserole — another slow, comforting braise-style dinner for a crowd
- Cheesy Ranch Potatoes and Sausage — a hearty side dish that pairs well with rich pasta sauces
- Banana Tempura — a quick, crispy dessert if you want something completely different to finish the meal

Buona Beef Tuna Genovese Recipe (Tested Copycat)
Ingredients
For the Sauce:
- 3 lb (1.4 kg) boneless chuck roast, cut into 3–4 large pieces
- 2 tablespoon olive oil
- 3 lb (1.4 kg) yellow onions, thinly sliced
- 1 carrot, finely diced
- 1 celery stalk, finely diced
- 3 garlic cloves, minced
- 1/2 cup dry white wine
- 2 tablespoon tomato paste
- 1 parmesan rind (optional)
- 1 bay leaf
- 1 can (5 oz) oil-packed tuna, drained and flaked
- Salt and black pepper, to taste
- Water or broth, as needed
For Serving:
- 1 lb rigatoni or ziti
- Grated parmesan
- Fresh basil, torn
Instructions
- Pat the chuck roast dry and season with salt and pepper. Sear in hot olive oil in a Dutch oven, about 4 minutes per side, until deeply browned. Remove and set aside.
- Add the sliced onions, carrot, celery, and garlic to the same pot. Cook over medium-low heat, stirring occasionally, for 15 minutes until softened.
- Pour in the white wine, scraping up the browned bits from the bottom. Stir in the tomato paste.
- Return the beef to the pot along with the bay leaf and parmesan rind if using. Add water or broth to come halfway up the beef. Cover and simmer on low, or braise at 325°F (163°C), for about 3 hours, until the onions have fully collapsed and the beef shreds easily.
- Remove the beef, shred with two forks, and return it to the pot. Stir in the drained, flaked tuna. Simmer uncovered for 20–25 minutes. Taste and adjust salt.
- Cook the pasta until just shy of al dente. Toss directly into the sauce with a splash of pasta water. Serve topped with grated parmesan and fresh basil.
Notes
- The sauce tastes better on day two — if time allows, make it a day ahead and reheat gently before tossing with fresh pasta.
- Drain the tuna well before adding; leftover oil can make the finished sauce taste greasy.
- Slice the onions thin rather than in chunks so they break down fully during the 3-hour braise.
- To freeze, store the sauce without pasta for up to 3 months; thaw overnight in the fridge before reheating.
- If the sauce looks watery after 3 hours, uncover and simmer an additional 20–30 minutes to reduce.
- A parmesan rind is optional but adds a deeper savory note if you have one on hand.






