Transform your leftover prime rib into a hearty, flavorful pasta dish with this delightful recipe. This isn't just a way to use up leftovers; it's a culinary transformation that turns yesterday's feast into today's comfort food. Let's dive into this mouthwatering leftover prime rib pasta recipe.
Ingredients
Here's what you'll need to create this satisfying pasta dish:
- 2 cups cooked, sliced prime rib
- 8 oz (225g) pasta (such as fettuccine or pappardelle)
- 2 tbsp olive oil
- 1 medium onion, thinly sliced
- 2 cloves garlic, minced
- 8 oz (225g) mushrooms, sliced
- 1 cup (240ml) beef broth
- 1 cup (240ml) red wine (optional, but it adds depth of flavor)
- 1 tbsp tomato paste
- 1 tsp dried rosemary
- 1 tsp dried thyme
- Salt and pepper, to taste
- 1 cup (115g) grated Parmesan cheese
- 2 tbsp chopped fresh parsley, for garnish
Cook the Pasta
Start by cooking your pasta according to package instructions until al dente. Reserve 1 cup of pasta water before draining, as this can help adjust the sauce consistency later.

Sauté the Aromatics
In a large skillet, heat the olive oil over medium heat. Add the sliced onions and cook until softened, about 5 minutes. Add the minced garlic and cook for another minute, stirring frequently to prevent burning.
Add the Mushrooms and Prime Rib
Stir in the sliced mushrooms and cook until they release their moisture and begin to brown, about 5-7 minutes. Add the sliced prime rib to the skillet and cook for another 2-3 minutes, allowing the meat to heat through and absorb the flavors of the skillet.
Create the Sauce
Pour in the beef broth and red wine (if using), scraping the bottom of the skillet to deglaze and release any browned bits. Stir in the tomato paste, dried rosemary, and dried thyme. Bring the mixture to a simmer, then reduce the heat to medium-low and let it cook for about 10 minutes, allowing the sauce to reduce and thicken.

If the sauce becomes too thick, thin it out with some of the reserved pasta water. Season with salt and pepper to taste.
Combine with Pasta
Add the cooked pasta to the skillet, tossing it gently to combine with the sauce and meat. If needed, add more pasta water to achieve your desired consistency. Stir in 3/4 cup of the grated Parmesan cheese until it's melted and creamy.
Serve and Garnish
Divide the leftover prime rib pasta among plates, then garnish with the remaining Parmesan cheese and chopped fresh parsley. Serve immediately and enjoy your delicious, transformed leftovers!

This leftover prime rib pasta recipe is a perfect example of how to elevate yesterday's meal into today's culinary triumph. The rich, savory flavors of the prime rib combine with the earthy mushrooms and the comforting pasta to create a dish that's greater than the sum of its parts. Bon appétit!






















