Instant Pot Stuffed Shells

Creamy, cheesy, and incredibly comforting, these Instant Pot Stuffed Shells are the perfect easy dinner for busy weeknights. Jumbo pasta shells are filled with a rich ricotta cheese mixture, covered in flavorful marinara sauce, and cooked to perfection right in the Instant Pot. This recipe delivers all the classic flavors of stuffed pasta with less effort and faster cooking time.

Why You’ll Love This Recipe

• Quick and convenient thanks to the Instant Pot
• Perfect for busy family dinners
• Rich, creamy cheese filling in every bite
• No need to pre-boil the pasta shells
• Great for meal prep and leftovers
• Easy to customize with meat or vegetables
• Comfort food everyone will enjoy

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

15 ounces ricotta cheese

2 cups mozzarella cheese, divided

1/2 cup parmesan cheese, shredded

2 cloves garlic, minced

1 large egg

1 teaspoon kosher salt, divided

1/2 teaspoon black pepper, divided

1/4 cup fresh parsley, chopped

12 ounces jumbo pasta shells, uncooked

24 ounces marinara sauce

1 1/2 cups water

Nonstick cooking spray

Directions

1. In a large mixing bowl, combine the ricotta cheese, 1 cup mozzarella cheese, parmesan cheese, egg, minced garlic, 1/2 teaspoon salt, 1/4 teaspoon black pepper, and chopped parsley. Stir until smooth and fully combined.
2. Transfer the cheese mixture into a large gallon-size plastic bag. Snip a small corner from the bag to create a piping bag for easier filling.
3. Lightly spray the Instant Pot insert with nonstick cooking spray to help prevent sticking and make cleanup easier.
4. Fill each uncooked jumbo pasta shell with the ricotta mixture and carefully place them into the Instant Pot in a single layer as much as possible.
5. Pour the water into the Instant Pot around the shells. Sprinkle in the remaining salt and black pepper.
6. Spoon the marinara sauce evenly over the stuffed shells. Do not stir the mixture.
7. Close the Instant Pot lid and set the valve to sealing. Cook on High Pressure for 8 minutes.
8. Once cooking is complete, carefully perform a Quick Pressure Release. If liquid sprays from the valve, close it and wait a minute before releasing pressure again.
9. Sprinkle the remaining 1 cup mozzarella cheese over the hot shells. Cover with the lid for a few minutes until the cheese melts completely.
10. Let the shells rest for about 5 minutes before serving to help the filling set and the sauce thicken slightly.

Servings and timing

Servings: 8 servings

Prep Time: 15 minutes

Cook Time: 8 minutes

Pressure Build Time: 10 minutes

Total Time: 33 minutes

Calories: Approximately 381 calories per serving

Variations

• Add cooked ground beef or turkey between the layers for a heartier meal.
• Mix spinach into the ricotta filling for added vegetables and flavor.
• Use cottage cheese instead of ricotta for a lighter filling.
• Add crushed red pepper flakes for a spicy version.
• Try different cheeses such as provolone or fontina for extra richness.
• Use homemade marinara sauce for a fresher taste.
• Add sautéed mushrooms or chopped zucchini to the filling mixture.

Storage/Reheating

Store leftover stuffed shells in an airtight container in the refrigerator for up to 4 days.

To freeze, place cooled shells in a freezer-safe container and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.

For reheating, microwave individual portions for 2 to 3 minutes or until heated through. You can also reheat them in the oven at 350°F for about 20 minutes covered with foil.

If the sauce thickens too much during storage, add a splash of water or marinara sauce before reheating.

FAQs

Can I use cooked pasta shells instead of uncooked?

Yes, but uncooked shells work best in the Instant Pot because they hold their shape while filling and cooking.

Why are my stuffed shells watery?

The shells may need a few minutes to rest after cooking so the sauce and cheese filling can thicken properly.

Can I make this recipe ahead of time?

Yes, you can assemble the stuffed shells ahead and refrigerate them until ready to cook.

What size Instant Pot should I use?

A 6-quart Instant Pot works perfectly for this recipe.

Can I freeze stuffed shells before cooking?

Yes, you can freeze the stuffed uncooked shells and cook them later after thawing.

How do I avoid the burn notice on my Instant Pot?

Avoid stirring the sauce, use enough liquid, and make sure the pot is clean before cooking.

Can I add meat to this recipe?

Absolutely. Cooked ground beef, turkey, or sausage can be added along with the marinara sauce.

What marinara sauce works best?

A thick, rich marinara sauce works best because it helps prevent burning and adds more flavor.

Can I use dried parsley instead of fresh?

Yes, substitute about 1 tablespoon dried parsley if fresh parsley is unavailable.

How do I keep the cheese filling inside the shells?

Avoid overfilling the shells and allow the dish to cool slightly before serving.

Conclusion

Instant Pot Stuffed Shells are a simple and satisfying dinner packed with creamy ricotta, gooey mozzarella, and flavorful marinara sauce. Using the Instant Pot makes this classic comfort food faster and easier than traditional baked stuffed shells. Whether you are cooking for a busy weeknight meal or preparing food ahead for the family, this cheesy pasta recipe is guaranteed to become a favorite.

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