Instant Pot Green Bean Casserole

If there was a dish to scream “homemade” American, it’s Green Bean Casserole. Ever since it was created in the 1950s, this classic side makes frequent appearances at holiday tables in the colder months. However, it’s main feature is something I was never too keen on: condensed cream of mushroom soup. So we’re going to make this better than ever by replacing that jiggly substance with the magic of Mushroom Better Than Bouillon! We’re also going to load it up with some rich dairy, taking it to the next level. To top it all off, my Instant Pot version will be done much quicker and simpler than the traditional way!

This post was sponsored by Better Than Bouillon/Summit Hill Foods.

Green Bean Casserole
Green beans in a strainer separated from their juices
Begin by draining some cans of green beans (either cut and/or French-style) and reserving 1 cup of their juices.
Jar of Mushroom Better Than Bouillon
Now for the secret ingredient: Mushroom Better Than Bouillon!
Adding bouillon base to green bean juice
Scoop 1 teaspoon of the base from the jar…
Stirring green bean juice
…and mix it in with the reserved green bean juice.
Adding green beans and juice to Instant Pot
Add the green beans to the pot along with the green bean-mushroom juice. Smooth out the green beans so they’re evenly distributed.
Topping with mushrooms
Top with the mushrooms (but don’t stir them). Secure the lid and cook at high pressure.
Cooking beans and mushrooms
When done, it’ll look like this. Now, to dairy this up! Give the pot some heat.
Adding cream to pot
Add some cream…
Adding shredded mozzarella to pot
…shredded Mozzarella cheese…
Adding Boursin to pot
…and herb cheese.
Stirring pot
Give it all a good stir…
Everything mixed until creamy
…until the dairy is nice and combined. Kill the heat.
Adding fried onions to pot
Of course, it wouldn’t be a green bean casserole without some fried onions! I like adding mine INTO the dish as well as topping with them. Take a generous amount…
Stirring onions into mixture
…and stir them into the amazing cheesy, greeny, mushroomy mixture.
Topping with additional fried onions
Top with the remaining fried onions and either serve OR…
Placing air fryer lid on pot
…for a crispy finish, add an air fryer lid and broil for a few minutes (NOTE: you can also do this in an oven in a casserole dish).
Browned onion crust from air frying
Look at how beautiful! This gorgeous green bean casserole is ready to be devoured.
Man showing casserole
Bowl some of it up…
Man trying casserole
…try it out…
Man looking blissful
…and SOLD! No need to ever used condensed cream of mushrooms soup in your green bean casserole again!
Instant Pot Best Green Bean Casserole
Yield: 6

Instant Pot Green Bean Casserole

Instant Pot Green Bean Casserole
Prep Time 2 minutes
Cook Time 1 minute
Additional Time 2 minutes
Total Time 5 minutes



  1. After reserving the 1 cup of juices from the canned green beans, mix the teaspoon of Mushroom Better Than Bouillon in with it until it dissolves.
  2. Add the green beens and cup of green bean-shroom juice to the Instant Pot. Smooth out the beans with a spatula. If using, top with the mushrooms. Secure the lid, move the valve to the sealing position, hit Pressure Cook or Manual at High Pressure for 1 minute. Quick Release when done.
  3. Hit Cancel followed by Sauté and Adjust so it's on the More or High setting. Add the cream, shredded mozzarella (see Jeff's Tips), and herb cheese. Stir until all is melded together and well combined. Hit Cancel to turn the pot off.
  4. Stir in 1 1/2 cups of the fried onions. Then, top with the remaining fried onions and serve. Or...
  5. For a crispy finish: Top with the remaining fried onions, add the air fryer lid, hit Broil (400°) for 5 minutes and serve. Or, you can transfer to a casserole dish, top with the remaining fried onions and broil until browned (just keep an eye on it as all ovens vary).

Jeffrey's Tips

When adding the shredded mozzarella, start with 2 cups. If you decide you want it very thick (and extra cheesy) after stirring, then add the third cup of cheese.

Don't want mushrooms? Don't add them and use 1 teaspoon of any flavor of Better Than Bouillon in its place!

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