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OSU Casserole


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4.9 from 8 reviews

  • Author: 365 Days of Slow and Pressure Cooking
  • Prep Time: 20 minutes
  • Cook Time: 2 minutes (plus 5 minute NPR)
  • Total Time: 22 minutes
  • Yield: 6-8 servings 1x

Description

An easy Instant Pot one pot meal of penne pasta, Italian sausage, marinara sauce, peppers, mushrooms, mozzarella and spinach.  


Ingredients

Scale
  • 1 lb Italian sausage
  • 1 cup diced onion
  • 4 ounces sliced mushrooms
  • 4 garlic cloves, minced
  • 2 cups chicken broth
  • 8 ounces mini penne
  • 1 Tbsp Italian seasoning
  • 1 (24 oz) jar marinara sauce
  • 1/4 tsp sugar
  • 1/2 of one red or green bell pepper, diced
  • 2 cups chopped spinach
  • 1 cup shredded mozzarella, divided

Instructions

  1. Turn Instant Pot to saute setting. When display says HOT add in the sausage and break it up. Add in the onions. Brown for about 4 minutes. Add in the mushrooms and cook for 2 more minutes. Add in garlic and cook for 30 seconds. 
  2. Pour in the broth and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot. 
  3. Sprinkle in the penne evenly. Add in the Italian seasoning, marinara sauce, sugar and peppers. Don’t stir.
  4. Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set the manual/pressure cook button to 2 minutes. When time is up let pot sit for 5-10 minutes and then move valve to venting. Remove the lid. 
  5. Stir in the spinach and half of the mozzarella. Sprinkle the remaining mozzarella on top and let it melt (I used my air fryer lid to melt it). 
  6. Serve and enjoy!
  • Category: Pasta
  • Method: Instant Pot