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Keto Green Bean Casserole

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Stick with your keto lifestyle even through the holidays by adding in sides like this Keto Green Bean Casserole. This recipe includes hearty green beans, smothered in a delicious keto cream of mushroom soup. It’s then topped off with homemade, crispy onions for the perfect holiday dish. 

casserole in white dish

There’s nothing like a big Thanksgiving meal to pig out on. That big turkey with all the sides and desserts to go along with it. It’s truly a time to give thanks for all the blessings we have.

Especially for the fact that we’re able to have such an abundance of food and people to share it with. It always makes me tear up to see my family gathered around that big table, sharing in all the delicious food and smiles.

dish and spoon with casserole

Green bean casserole has always been a classic side my family never forgets to have on the table. Of course, we never forget the Keto Bacon Wrapped Brussel Sprouts or Keto Everything Bagel Deviled Eggs.

Then, over on the dessert table, you have the pumpkin pie, Haystacks, and Keto Peanut Butter Cookies. I get excited just thinking about all that yummy food!

white dish and wood spoon and food

How to Make Keto Green Bean Casserole

  1. Prep - Preheat the oven to 350 degrees. 
  2. Mix - In a medium bowl, combine the drained green beans and Keto Cream of Mushroom Soup. Mix well.
  3. Bake - Pour the green bean mixture into a 1.5-quart casserole dish and spread even. Bake for 12-15 minutes.
  4. Fry - Slice the onions into thin slivers. Heat a bit of oil in a frying pan and fry the onions for about 5 minutes.
  5. Assemble - Sprinkle the onions over the top of the casserole. Serve and enjoy!
dish and food

Tips and Variations

  • Storage - Store, covered, in the fridge, for up to 5 days. Store in the freezer, in an airtight container, for up to 3 months. 
  • Reheating - Reheat using the microwave, oven, or in a saucepan over the stove. 
  • Use breaded onions - If you prefer, you can beat one egg and dip the onions in it, then dip them in some coconut or almond flour before frying them. This is totally up to you on which route you want to take. I prefer them unbreaded, personally. 
  • Use keto-friendly canned soup - If you have a health food store near you, odds are, you should be able to find some soup to make this recipe quicker. Just be sure it’s a keto-friendly condensed or “cream of” soup. 
  • Use sour cream - If you don’t want to make your own soup or use canned soup, use sour cream instead. Of course, you’ll need to saute some mushrooms and garlic to add in with the sour cream and green beans. If not, you won’t have any flavor in your green bean casserole. 
dish and spoon and food

Common Questions About Keto Green Bean Casserole

How Many Cans is 4 Cups of Green Beans?

Since cans of green beans are in a strange number of ounces, your closest number of cans for 4 cups would be 2. Most cans of green beans come in 15-15.5-ounce cans. So, two of them will be 30-31 ounces instead of 32, which is definitely close enough for a green bean casserole recipe. 

Does Green Bean Casserole Freeze Well?

Yes, a green bean casserole recipe will freeze really well. What’s great is that their ingredients freeze so well, there’s no texture or flavor change upon reheating.

This is a huge plus for me as I don’t like freezing certain recipes if they’re going to come back out with a different texture. It makes it hard for me to eat them. You know, those recipes that come out mushy or gritty after being frozen? Yeah, ew, no.

Thankfully, that doesn’t happen with this recipe, so you’re good to go. Just remember to use an airtight container and don’t freeze it beyond 3 months, for the best results. 

food in dish with spoon

Is Green Bean Casserole Keto friendly?

Yes, Green beans are a Keto friendly vegetable. One cup of green beans has approximately 7 carbs.

Green Bean Keto Casserole

Prep Time: 3 Minutes

Cook Time: 20 Minutes

Serves: 6

Ingredients:

Directions:

Preheat the oven to 350 degrees.

Heat a skillet over medium/high heat with a drizzle of olive oil in it. 

Thinly slice the onion and fry in the oil once heated until nice and crispy or to your liking. 

food in bowl

Combine the green beans and cream of mushroom soup in a bowl and toss to coat thoroughly. 

food in white dish

Pour into a casserole dish and spread even.

Top with the fried onions and bake for about 15 minutes or heated through.

food in dish

If you enjoyed this Keto Green Bean Casserole or have questions, please let me know in the comment section below or even on social media!   

More Keto Side Dishes You Might Like:

Keto Green Bean Casserole

Keto Green Bean Casserole

Yield: 8
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes

Stick with your keto lifestyle even through the holidays by adding in sides like this Keto Green Bean Casserole. This recipe includes hearty green beans, smothered in a delicious keto cream of mushroom soup. It’s then topped off with homemade, crispy onions for the perfect holiday dish.

Ingredients

  • 4 Cans Green Beans
  • 1 ½ Cups Keto Cream of Mushroom Soup
  • ½ Red Onion
  • Oil, for frying

Instructions

    1. Preheat the oven to 350 degrees.
    2. Heat a skillet over medium/high heat with a drizzle of olive oil in it.
    3. Thinly slice the onion and fry in the oil once heated until nice and crispy or to your liking.
    4. Combine the green beans and cream of mushroom soup in a bowl and toss to coat thoroughly.
    5. Pour into a casserole dish and spread even.
    6. Top with the fried onions and bake for about 15 minutes or heated through.

Notes

Use breaded onions - If you prefer, you can beat one egg and dip the onions in it, then dip them in some coconut or almond flour before frying them. This is totally up to you on which route you want to take. I prefer them unbreaded, personally.
Use keto-friendly canned soup - If you have a health food store near you, odds are, you should be able to find some soup to make this recipe quicker. Just be sure it’s a keto-friendly condensed or “cream of” soup.
Use sour cream - If you don’t want to make your own soup or use canned soup, use sour cream instead. Of course, you’ll need to saute some mushrooms and garlic to add in with the sour cream and green beans. If not, you won’t have any flavor in your green bean casserole.

Did you make this recipe?

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