Instant Pot Lamb Ragu Recipe

Lamb Ragu brings rich, Italian-style comfort to your dinner table with tender lamb simmered until it melts in your mouth. This hearty meat sauce cooks with tomatoes, aromatics, and herbs until the flavors meld into something truly special. Perfect for Sunday dinners, meal prep, or any time you want something satisfying that tastes like it took all day but actually comes together quickly in your Instant Pot.

Why You’ll Love This Recipe

• Instant Pot method makes it quick and hands-off
• Lamb becomes melt-in-your-mouth tender
• Works on stovetop or slow cooker too
• Freezes beautifully for future meals
• Tastes even better the next day

Equipment Needed

• Instant Pot (or slow cooker or Dutch oven)
• Large spoon or spatula
• Sharp knife and cutting board
• Two forks (for shredding meat)
• Large pot for pasta

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Ingredients You’ll Need

• 1 pound lamb shoulder, cut into large chunks
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 2 tablespoons olive oil
• 1 clove garlic, minced
• 1/2 small onion, sliced
• 1 small carrot, diced
• 2 stalks celery, diced
• 1/2 cup beef broth
• 14 ounces canned tomatoes (San Marzano preferred)
• 1 1/2 tablespoons tomato paste
• 1 tablespoon Italian seasoning
• 1/2 teaspoon sugar
• 2 bay leaves
• 1 beef bouillon cube
• 12 ounces pappardelle pasta (or pasta of choice)
• Parmesan cheese for serving

Ingredient Notes

Lamb Shoulder: This cut is perfect for braising because it has good marbling that adds richness to the sauce. It stays tender during long cooking. Lamb chunks or lamb shank work as alternatives.

Tomatoes: San Marzano tomatoes deliver the best flavor. If using fire-roasted tomatoes, they add even more depth to the sauce.

Tomato Paste: Concentrates tomato flavor without adding excess liquid. Do not substitute tomato sauce or the ragu will be too thin.

Bouillon Cube: While optional, it adds tremendous depth. Beef is preferred but chicken or vegetable works too.

Pappardelle: Wide pasta holds the sauce beautifully. Tagliatelle or fettuccine work well too.

Step-by-Step Instructions

Step 1: Prep the Lamb

Cut lamb shoulder into large chunks and pat them dry. Season generously with salt and pepper on all sides.

Step 2: Sauté Vegetables

Using the sauté function on your Instant Pot, heat olive oil. Add garlic, onion, carrot, and celery. Cook until the vegetables become tender and fragrant, about 3-4 minutes.

Step 3: Sear the Lamb

Add the seasoned lamb chunks to the pot. Sear on all sides until browned. This step develops deep flavor through caramelization.

Step 4: Add Remaining Ingredients

Stir in beef broth, canned tomatoes, tomato paste, Italian seasoning, sugar, bay leaves, and bouillon cube. Mix everything well to combine all the flavors.

Step 5: Pressure Cook

Lock the lid and close the vent valve. Cook on high pressure for 25 minutes. After cooking, let the pressure release naturally for 10 minutes, then quick release the remaining pressure.

Step 6: Shred the Lamb

Open the pot and use two forks to shred the lamb. Discard any large pieces of fat or sinew. The meat should fall apart easily.

Step 7: Cook and Combine Pasta

While the ragu rests, cook pappardelle according to package directions. Reserve 1/2 cup pasta water before draining. Toss the cooked pasta with the lamb sauce, adding pasta water as needed to reach desired consistency.

Pro Tips & Cooking Hacks

• Sear the lamb well to develop rich flavor in the sauce
• Natural pressure release prevents the meat from becoming tough
• Save pasta water to thin the sauce if needed
• Make a double batch and freeze half for easy future meals
• The flavor improves after a day in the fridge

Tips & Variations

Add Red Wine: Replace half the beef broth with red wine for deeper, more robust flavor. Let it reduce slightly after adding.

Stovetop Method: After searing, simmer everything in a Dutch oven over low heat for 2-3 hours until lamb shreds easily.

Slow Cooker Option: Sauté vegetables and sear lamb on the stovetop first, then transfer everything to a slow cooker. Cook on low for 6-8 hours.

Serving Suggestions

Serve this lamb ragu over pappardelle or any wide pasta that holds sauce well. Top generously with freshly grated Parmesan cheese and a drizzle of good olive oil.

For a low-carb option, serve over mashed cauliflower or zucchini noodles. Crusty bread on the side soaks up every drop of that rich sauce.

Common Mistakes

• Skipping the searing step loses depth of flavor
• Quick releasing all the pressure makes meat tough
• Using tomato sauce instead of paste makes it too thin
• Not shredding the meat thoroughly leaves chunks
• Forgetting to reserve pasta water means no way to adjust sauce

What to Serve With Lamb Ragu

Keep it classic Italian with a simple green salad dressed with balsamic vinaigrette and crusty garlic bread. The acidic salad cuts through the rich sauce perfectly.

For wine pairing, choose a medium to full-bodied red like Chianti, Sangiovese, or Merlot. The wine’s tannins complement the lamb beautifully.

Frequently Asked Questions

Can I use a different cut of meat?

Lamb chunks, lamb shank, or beef chuck all work well. Each shreds nicely when braised for the proper time.

How do I make this ahead?

The ragu actually tastes better the next day. Make it up to 2 days ahead and refrigerate. Reheat gently and cook pasta fresh when ready to serve.

Can I freeze lamb ragu?

Yes! Freeze the sauce (without pasta) in airtight containers for 2-3 months. Thaw overnight in the refrigerator before reheating.

What if I don’t have an Instant Pot?

Use the stovetop method in a Dutch oven (simmer 2-3 hours) or slow cooker method (6-8 hours on low). Both work beautifully.

How can I make the sauce thicker?

Let the sauce simmer uncovered after shredding the meat to reduce and thicken. You can also add an extra tablespoon of tomato paste.

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