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Arkansas Casserole

  • Author: 365 Days of Slow and Pressure Cooking
  • Prep Time: 20 minutes
  • Cook Time: 3 minutes (plus 10 minute NPR)
  • Total Time: 23 minutes
  • Yield: 4-6 servings 1x


An Instant Pot version of an old-fashioned rice casserole with mushrooms and peppers.  


  • 2 Tbsp butter
  • 1 cup diced onion
  • 4 ounces sliced mushrooms
  • 1 1/2 cups water
  • 1 Tbsp Better than Bouillon Beef Base
  • 1 cup uncooked parboiled rice or long grain white rice
  • 1 red bell pepper, cored, seeded and diced
  • Kosher salt to taste


  1. Turn Instant Pot to saute setting. When display says HOT add in the butter and let it melt. Add in the onions and mushrooms and saute for 4 minutes. 
  2. Pour in the water and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot. 
  3. Stir in the bouillon. Sprinkle in the rice and peppers. 
  4. Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set the manual/pressure cook button to 3 minutes. When time is up let pot sit for 10 minutes and then move valve to venting. Remove the lid. 
  5. Stir. Taste test. Add in salt to taste. Serve and enjoy!
  • Category: Side
  • Method: Instant Pot