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Save time and oven space and make Instant Pot Green Bean Casserole. This classic side dish will be made quick and easy in the Instant Pot.

A serving dish filled with Instant Pot Green Bean Casserole sits on a countertop, with a spoon in the dish. A smaller plate with the casserole is in the background. Crispy fried onions top the green beans which are mixed with a creamy sauce, and an Instant Pot is partially visible.
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Green Bean Casserole is a classic side dish that we make every year. The layers of cream of mushroom soup, the green beans and the French Onions make this side so delicious.

Baking this side dish usually takes about 30 minutes, but making it in the Instant Pot takes less than 15 minutes. The flavor is amazing and you still get that crispy topping that everyone loves. You may also love more Instant Pot Thanksgiving Recipes.

Try these other green bean casseroles recipe for delicious variation – Green Bean Casserole with Cream of Chicken, Chicken Green Bean Casserole, Green Bean Casserole with Bacon and Cheese and Skillet Green Bean Casserole Recipe.

Why This Recipe Works

Making this Green Bean Casserole in the Instant Pot has saved me time and oven space. I no longer have to bake everything, thanks to the Instant Pot.

The Pressure Cooker has been a game changer for my family and now I can use it for our favorite side dish.

Ingredients

Top-down view of ingredients for an Instant Pot Green Bean Casserole, including a bowl of green beans, a bowl of crispy fried onions, a bowl of creamy mushroom soup, a measuring cup of milk, a small bowl of black pepper, and a measuring cup of water on a light surface.

 Scroll to the bottom for the full recipe in the recipe card.

Variations

  • Cheese – You can add in shredded cheddar cheese if you prefer. Mix a combination of parmesan, mozzarella cheese, cheddar with the other ingredients. This combination makes extra cheesy.
  • Mushrooms – We used cream of mushroom soup, but you easily use fresh mushrooms that have been sauteed a bit.
  • Cream Soup – Instead of using cream of mushroom soup, you can use cream of chicken or cream of celery. Use what you prefer and what you have.
  • Crushed Crackers – You can add a layer of crushed crackers for an extra crunch to the casserole. Use crushed crackers instead of the crispy fried onions for that crunchy layer on top.
  • Fresh Onion – For added flavor, you can always add in some fresh onion.
  • Slow Cooker – You can also make this casserole dish in the slow cooker. We like making it in the slow cooker to save space for the oven.
  • Chicken Broth – Instead of using water to pour into the instant pot, using chicken broth or vegetable broth.

How to Make Green Bean Casserole in the Instant Pot

An overhead view of an Instant Pot Green Bean Casserole, featuring fresh, cut green beans. The Instant Pot is placed on a light-colored marble countertop. The website "Eatingonadime.com" is watermarked in the lower right corner of the image.

Step 1 – Pressure Cook Green Beans – Place the ½ cup of water in the bottom of a 6 quart instant pot.  Then add the fresh green beans.  Cook on high pressure for 2 minutes and do a quick release to release the pressure from the instant pot after the cooking time. 

A glass container filled with a mixture of ground black pepper and a whitish, creamy substance, placed on a light gray, marble-textured surface. The website name "Eatingonadime.com" is visible in the bottom right corner, possibly showcasing ingredients for an Instant Pot Green Bean Casserole.

Step 2 – Mix together other ingredients – In a small mixing bowl, whisk together the milk, cream of mushroom soup, salt and black pepper. 

An open Instant Pot is shown from above on a white surface. Inside the pot, there are fresh green beans and a creamy, thick white sauce being mixed with a white spatula—perfect for an Instant Pot Green Bean Casserole. The website name, Eatingonadime.com, is visible in the bottom right corner of the image.

Step 3 – Add in cream of mushroom mixture – After the green beans have cooked, switch the instant pot to the sauté setting with the lid off and stir in the cream of mushroom mixture.  

A top view of an Instant Pot Green Bean Casserole reveals a creamy green bean mixture, topped with crispy fried onions. A spatula rests on the edge of the cooker, and the background is a light marble surface.

Step 4 – Heat ingredients – Heat on the saute setting for 3-4 minutes to heat the mixture through and combine the ingredients.  Then stir in half of the French fried onions and cook for 1 minute. 

  • Step 5 – Top with Remaining Fried Onion – Turn the instant pot off and let the mixture sit for 3-5 minutes to allow the sauce to thicken and then top the casserole with the remaining French fried onion right before serving. 
  • Step 6 – Serve and Enjoy – Serve and enjoy you favorite side dish. 

Expert Tips

  • Bake after cooking in the Instant Pot – If you want the top toasted for an added crunch on this casserole, transfer it to a baking dish. Then top with the French fried onions and broil OR bake at 450 degrees F for 3-5 minutes until the top is browned slightly. 
  • Transporting Green Bean Casserole – Since you are making this in the instant pot, I would transfer the cooked ingredients to a casserole dish. Then top with the remaining french fried onions right before serving so they stay crispy.
  • Green Beans – We recommend using fresh or frozen green beans. But if you use canned, you can skip the initial step of cooking the green beans.
An instant pot filled with a creamy dish consisting of cooked ground meat and green beans, topped with a sauce. This Instant Pot Green Bean Casserole appears well-cooked and seasoned, and the appliance is situated on a white surface with text reading "Eatingonadime.com" in the corner.

What to Serve with Green Bean Casserole?

If you looking for some easy recipes to serve with your Green Bean Casserole, here are some of our favorites.

  • 5 Ingredient Corn Casserole – You only need 5 ingredients and this casserole comes together with very little effort. The casserole is sweet and delicious. 
  • Crock Pot Broccoli Cheese CasseroleSlow Cooker Cheese Broccoli Casserole is a family favorite side dish. It is loaded with broccoli, cheese and easy seasoning. 
  • Sweet Potato and Apple CasseroleEveryone loves sweet potato casserole. Combining apple and mashed sweet potatoes in this Easy Sweet Potato Casserole Recipe will quickly become a family favorite. 

Green bean casserole makes the perfect side to your Christmas Turkey or Slow Cooker Christmas Ham Recipe.

What is a Healthy Substitute for Cream Soup?

We like to use canned cream of mushroom soup for the convenience of it. But you can make your own with simple ingredients.

Making homemade cream of soups for your recipes saves time and money. We also like to make them so we know the ingredients we are adding to our recipes. You can also make them gluten free.

Frequently Asked Questions

What Size of Instant Pot do you need for this Recipe?

We used a 6 quart Instant Pot for this recipe. We love how consist the cooking time is when making a meal in the instant pot. If you have a larger batch that you are making you may need a bigger instant pot.

How to Store Leftover Green Bean Casserole

Store leftovers in an airtight container in the refrigerator for up to 3-4 days. 

Can you Freeze Green Bean Casserole?

Yes, you can freeze green bean casserole. Once it has cooled to room temperature, place in a freeze safe container. Wrap the casserole in a plastic wrap and then with foil. Place in the freezer and if stored properly, it will last up to 6 months. When you are ready to serve, let the green bean casserole thaw overnight in the refrigerator. Then place in a baking dish and reheat in a preheated oven at 350 degrees.

Can I use Canned Green Beans?

You can also use canned green beans in this recipe if you prefer.  If you use canned, use approximately 3 cans, drain them and you do not need to pre-cook them before stirring them into the mixture. 
They will cook on the sauté setting with the cream of mushroom soup mixture. You will follow the recipe as indicated. We prefer fresh or frozen green beans. But canned green beans will still make a delicious casserole.

A bowl of Instant Pot Green Bean Casserole topped with crispy fried onions, placed next to a dish with additional fried onions, a salt and pepper shaker, a fork on a partial plate, and a cloth napkin with a spoon on it. The dish looks fresh and delicious.

More Instant Pot Side Dish Recipes

We love to hear from you. If you make this Instant Pot Green Bean Casserole Recipe, please leave us comment or star review.

A round white dish filled with Instant Pot Green Bean Casserole topped with crispy fried onions sits on a white table. To the right, there's a partial view of a smaller bowl with more fried onions, and to the left, a plate with a fork. A white and blue napkin is in the bottom right.

Instant Pot Green Bean Casserole

5 from 4 votes
Save time and oven space and make Instant Pot Green Bean Casserole. This classic side dish will be made quick and easy in the Instant Pot.
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings 6
Cuisine American
Course Side Dish
Calories 221

Ingredients

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Instructions

  • Place the water in the bottom of a 6 quart instant pot.  Then add the fresh green beans.
  • Cook on high pressure for 2 minutes and do a quick release to release the pressure from the instant pot after the cooking time.
  • In a small mixing bowl, whisk together the milk, cream of mushroom soup, salt and pepper.
  • After the green beans have cooked, switch the instant pot to the sauté setting with the lid off and stir in the cream of mushroom mixture.  Heat on the sauté setting for 3-4 minutes to heat the mixture through and combine the ingredients.  Then stir in half of the French fried onions and cook for 1 minute.
  • Turn the instant pot off and let the mixture sit for 3-5 minutes to allow the sauce to thicken and then top the casserole with the remaining French fried onion right before serving.
  • Enjoy!

Recipe Notes

If you want the top toasted for an added crunch on this casserole, transfer it to a casserole dish, top with the French fried onions and broil OR bake at 450 degrees F for 3-5 minutes until the top is browned slightly. 
You can also use canned green beans in this recipe if you prefer.  If you use canned, use approximately 3 cans, drain them and you do not need to pre-cook them before stirring them into the mixture.  They will cook on the sauté setting with the cream of mushroom soup mixture. 
Store leftovers in an airtight container in the refrigerator for up to 3-4 days. 

Nutrition Facts

Calories 221kcal, Carbohydrates 20g, Protein 3g, Fat 14g, Saturated Fat 6g, Polyunsaturated Fat 1g, Monounsaturated Fat 1g, Cholesterol 2mg, Sodium 445mg, Potassium 262mg, Fiber 3g, Sugar 4g, Vitamin A 805IU, Vitamin C 14mg, Calcium 60mg, Iron 1mg

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About the Author

Hi, I’m Carrie. Welcome to Eating on a Dime!

I’m on a mission to help you cook delicious meals without busting your budget. Together we are going to cook real food… for real families!

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