Instant Pot Healthy Green Bean Casserole

  • Author: Lisa @ This Pilgrim Life
  • Total Time: 20 minutes
  • Yield: 6-8 servings 1x
  • Category: side
  • Method: pressure cooker


This healthy green bean casserole is made from scratch in your Instant Pot! It’s so easy and delicious– you won’t be able to go back to the old way of making it!



  • 1 tbsp butter
  • 1 cup minced onions
  • 3 cup chopped mushrooms
  • 1/2 tsp kosher salt
  • 2 lbs green beans
  • 1/2 cup chicken broth
  • 1 tsp kosher salt
  • 1/2 cup heavy cream
  • 2 tbsp all-purpose flour

Onion Rings

  • 4 cups non-GMO canola oil (or other oil of choice)
  • 1 yellow onion, sliced into thin rings
  • 1 cup flour
  • 1 tbsp kosher salt
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1 tsp paprika
  • 1/2 tsp fresh ground pepper
  • water


  1. Turn the Instant Pot on to Sauté. Melt the butter, then add the onions and mushrooms to the hot pot. Sprinkle on the salt, toss the onions and mushrooms in the butter, and then leave them alone for about 3-5 minutes until they begin to soften and brown.
  2. Add the green beans to the Instant Pot and toss them with the onion/mushroom mixture. Pour in the chicken broth and add the remaining teaspoon of salt. Place the lid on the Instant Pot, turn the valve to sealing, and set the cook time for 2 minutes on high pressure.
  3. Make the fried onion rings: Heat oil in a dutch oven or a heavy bottomed skillet to 375°. Stir together the flour and spices in a small bowl with a fork. Add 1 1/4 C water and stir with the fork until blended. Add additional water, a tablespoon at a time, until the batter is the consistency of Greek yogurt. (You want it thin enough to drizzle off a spoon and thick enough to coat the onion rings). Toss the onion rings in the batter, then carefully drop them into the hot oil. Work in batches so that the vegetables are not overcrowded in the pan. Fry for 2-3 minutes, or until the onion rings are crisp and brown. Remove to drain on a plate with a paper towel.
  4. When the cook time is complete, quick release the pressure. Whisk together the heavy cream and flour, then pour it in the pot. Return the Instant Pot to Sauté, and let the cream sauce thicken slightly, about 5 minutes.
  5. Pour the green bean mixture into a casserole dish and top with fried onions. Alternately, you can serve the green bean casserole from the Instant Pot– just add the fried onions to the pot before serving.


If you would rather not fry your own onion rings, you can substitute them with ready-made bagged/canned fried onions, or leave them off completely.