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green bean casserole in a blue casserole dish
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5 from 1 vote

Ninja Foodi Green Bean Casserole w/ Air Fried Crispy Onions

Quick and Easy homemade green bean casserole made right in the pressure cooker.
Prep Time15 mins
Cook Time3 mins
Time to Pressure8 mins
Total Time26 mins
Course: Condiment
Cuisine: American
Servings: 6
Calories: 331kcal
Author: Louise


Air Fried Onions

  • ½ onion
  • ¼ cup butter melted
  • cup flour
  • 1 tsp sea salt, fine grind
  • 1 tsp onion powder
  • ½ Tbsp oil for spritzing

Green Bean Casserole

  • 12 ounces fresh green beans
  • 8 ounces portobello mushrooms
  • ½ onion
  • 1 tsp sea salt, fine grind
  • ½ tsp black pepper
  • ½ tsp thyme leaves, dried
  • 1 small bulb garlic
  • ¾ cup beef or chicken stock
  • ¼ cup sherry
  • ½ cup heavy cream


  • ¼ cup butter room temp
  • ¼ cup flour


Homemade Air Fried Crispy Onions

  • Preheat the Ninja Foodi using Broil for 10 minutes with the basket in. If using a different air fryer, preheat with the basket or cooking surface in the air fryer on the hottest setting for 10 minutes.
  • Thinly slice the onion into strips. A mandoline works best for this and I set mine on 2 mm.
  • Melt the butter in a medium size bowl and add the onions.
  • Combine ⅔ cup of flour with 1 tsp fine grind sea salt and 1 tsp onion powder. Mix well. I like to use these coating trays, but a large shallow container of any kind will work.
  • Place a few onion strips at a time into the flour mixture to coat. Try to keep them from clumping together. Repeat until all onions are coated.
  • Spritz the basket with oil of your choice and place the coated onions in a single layer. Spritz the top with oil. Air Crisp/Air Fry on 375°F/190°C for 5 minutes. Toss the onions around a bit and separate them if needed. Air Crisp/Air Fry for another 1-2 minutes. Remove the onions and let them cool on a cooling rack. Repeat if needed for the remaining onions.

Green Bean Casserole

  • Add fresh green beans, sliced mushrooms, ½ onion diced, and 1 tsp sea salt, ½ tsp black pepper, ½ tsp dried thyme leaves to the inner pot.
  • Cut the end off of the bulb of garlic. Peel and smash the garlic cloves, add to the pot.
  • Add ¾ cup of beef stock (or chicken stock) and ¼ cup of sherry OR 1 cup of beef or chicken stock. Stir and place the reversible rack in the high position.
  • In a 6" Fat Daddio pan, add ¼ cup of room temp butter and ¼ of flour and make a paste. Cover the pan and put on the rack.
  • Put the pressure lid on and turn the valve to seal. Pressure cook on high for ZERO minutes. Do an immediate release. Remove the pan with the butter/flour and the rack.
  • Stir the butter/flour so it is well combined and add it to the inner pot. Add in ½ cup of heavy cream and stir. Turn the sear/sauté on low-medium and heat just until the sauce thickens. Stir and top with air fried onions. Air Crisp/Air Fry on 400°F/200°C for 5 minutes.
  • Serve & Enjoy!


Nutritional values include both the casserole and the air fried onion topping. 
Nutritional values are provided as a courtesy and thesaltedpepper.com makes no guarantees of accuracy. We do our best to ensure they are accurate, but many factors influence nutritional values that are beyond our control. Different brands of items have different nutritional values, so it is always best to do your own independent nutritional analysis based on the items you are using in a recipe if you require a high level of accuracy. Thesaltedpepper.com will not be held accountable for any errors in the displayed nutritional information.


Serving: 0.5cup | Calories: 331kcal | Carbohydrates: 23g | Protein: 5g | Fat: 24g | Saturated Fat: 14g | Cholesterol: 68mg | Sodium: 986mg | Potassium: 376mg | Fiber: 3g | Sugar: 4g | Vitamin A: 1156IU | Vitamin C: 9mg | Calcium: 47mg | Iron: 2mg