Instant Pot Creamy Tuna Pasta Casserole

A casserole is important for every other special meal and this tuna pasta casserole will surely make your menu irresistible for all.

5 from 2 votes

Instant Pot Creamy Tuna Pasta Casserole

Course Main Course
Cuisine French
Keyword béchamel sauce, Creamy Tuna Pasta Casserole, mozzarella cheese, penne pasta or rigatoni
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings 6
Calories 343 kcal


  • 1 tbsp butter
  • 1 medium onion chopped
  • 1 medium carrot chopped
  • 1 medium celery stock chopped
  • 1 cup béchamel sauce
  • 14.5 oz tomato puree
  • 1 lb penne pasta or rigatoni
  • 2/3 lb canned tuna
  • 2/3 lb mozzarella, shredded
  • salt and pepper to taste


  1. Select “Sauté” function on the Instant Pot pressure cooker.

  2. Add butter, onion, celery and carrot to its cooking pot.

  3. Sauté until soft then add tuna, pepper and salt.

  4. Stir cook for 10 minutes until brown.

  5. Add tomato puree, pasta, salt and enough water to cover the pasta.

  6. Secure the lid and cook on “Manual” function for 5 minutes at high pressure.

  7. Release the pressure through quick release and remove the lid.

  8. Grease a casserole dish and transfer the beef mixture to the dish.

  9. Top it with mozzarella and broil for 5 minutes in the broiler until golden brown.

  10. Serve warm.