Keto green bean casserole is the low carb solution to your next holiday meal. With just a few modifications, you don’t need to miss out on this classic holiday side.

black platter with Keto Green Bean Casserole

Is it really even the holidays without green bean casserole? Creamy soup, green beans and a crunchy topping make a classic combination no Thanksgiving dinner would be complete without.

Of course, if you’re eating keto planning holiday meals takes just a little more effort. This year you don’t have to miss out on your favorite Thanksgiving side dish. This keto green bean casserole just requires a few key substitutions to keep this holiday side dish keto-friendly but still mouth wateringly delicious.

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ingredients for Keto Green Bean Casserole

What You’ll Need

Here’s what you’ll need to make this waistline friendly spin!

For the casserole

  • Butter – like bacon, butter makes everything better, but it’s also a great way to saute the onions
  • Onion – we use either yellow or white varieties and finely dice them.
  • Fresh green beans – You’ll need to trim and cut the green beans. If you want to do it like my grandma you can just snap the ends off and then snap the beans in half, or you can use a knife ;). You can also buy pre-trimmed beans, but they will cost you a bit more. While I prefer fresh green beans you can use canned if you want to save time.
  • Spices – nothing crazy here just some Kosher salt and black pepper
  • Keto Condensed Cream of Mushroom Soup – Regular condensed cream of mushroom soup has lots of carbs because it uses starches as thickener. Make our Keto Cream of Mushroom Soup for this recipe.
  • Cheddar cheese – we use mild cheddar, but you could use sharp if you prefer

For the topping

  • Almond slivers – these are a keto friendly options that still give you that crunchy topping you love.
  • Minced Dried Onion – sprinkle the minced dried onions with the butter and almond slivers to add some flavor.
  • Butter – toss the almond slivers in the butter and minced onions to get the most flavor.
Keto Green Bean Casserole with cheddar cheese on top

How to Make Keto Green Bean Casserole

The casserole:

Start your pots and ovens. Preheat your oven to 350 degrees F. Meanwhile, fill a large pot with water and add salt. Bring the water to a boil. Once it is boiling, toss in the green beans and cook for about 7-10 minutes or until they are tender with a very slight crunch.

Saute the onions. While the green beans cook, heat a small skillet over medium-high heat. Add the butter and diced onion. Saute for 4 to 5 minutes or until softened and slightly translucent.

Assemble and bake. When the green beans have finished cooking, pour them into a strainer and run the beans under cold water until they are room temperature. Make sure the beans are completely drained before adding them to a 2 quart (11×7 inch) casserole dish. Next, pour your cooked keto condensed cream of mushroom soup over the beans and add the cooked onions. Use a fork to gently stir everything together. Finally, sprinkle the cheddar cheese on top and bake for 20 minutes. 

After 20 minutes, carefully add the crispy topping (see steps to make this below) and bake for another 5 minutes. Remove from the oven, serve, and enjoy!

For the crispy topping, follow these easy steps:

Toast in butter. In a medium skillet, melt the butter over medium heat. When the butter is melted, add the almond silvers and the dried minced onions. Toast the topping for about 2 to 3 minutes. Make sure you stir it constantly during the toasting process. Remove from heat and set aside until the topping is needed.

black platter with Keto Green Bean Casserole

Keto Toppings for Green Bean Casserole

Everyone knows that the french fried onions are the major reason we all know and love green bean casserole. It is the comfort food of nearly any holiday meal. So our challenge with making it keto was how to replace the onions in a way that you won’t miss those crunchy little onions.

For this recipe we used almond slivers cooked with dried minced onions. It’s low carb and still gives you that little bit of crunch you love in a green bean casserole. 

black platter with Keto Green Bean Casserole

Can You Make It Ahead of Time?

Yes! You can make and assemble the casserole up to 2 days in advance to save you time on the holiday itself. Just don’t make the crispy topping until you are ready to place the casserole in the oven. This way, the topping will have that crispy, crunchy texture. 

But keep in mind, since you’re storing the casserole in the refrigerator, you will likely need to add about 5 to 10 minutes to the cooking time to make sure it is warmed through. Just add the crunchy topping when you have 5 minutes left in your cook time!

black platter with Keto Green Bean Casserole

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Servings: 8
Prep Time: 15 mins
Cook Time: 45 mins
Total Time: 1 hr

Keto Green Bean Casserole

Keto green bean casserole is the low carb solution to your next holiday meal. With just a few modifications, you don’t need to miss out on this classic holiday side.

Ingredients

Casserole:

Topping:

  • ½ cup Almond slivers
  • 1 Tablespoon Minced Dried Onion
  • ½ tablespoon Butter

Instructions

Casserole:

  • Preheat the oven to 350 degrees F.
  • Fill a large pot with water and add salt. Bring to a boil.
  • Once the water is boiling add green beans and cook for 10-15 minutes until they are tender with just a little bit of a crunch.
  • While the green beans cook heat a small skillet over medium high heat and add butter and onion. Saute for 4-5 minutes until softened.
  • When the green beans have finished cooking pour into a strainer and run the beans under cold water until they are room temperature.
  • Thoroughly drain the beans and then add them to a 2 quart (11×7 inch) casserole dish.
  • Pour your cooked keto condensed cream of mushroom soup over the beans and add the cooked onions and pepper. Use a fork to gently stir everything together.
  • Sprinkle the cheddar cheese on top.
  • Place in oven and bake for 20 minutes.
  • Open the oven and add your crispy topping then continue baking for 5 more minutes.
  • Remove from oven and serve.

Topping:

  • Heat a skillet over medium heat and add ½ tablespoon of butter.
  • Once the butter has melted add the almond slivers and the dried minced onion.
  • Toast them together for 2-3 minutes stirring constantly.
  • Set aside until ready to use.

Nutrition

Serving: 4ounces, Calories: 276kcal, Carbohydrates: 9g, Protein: 8g, Fat: 24g, Saturated Fat: 13g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 1g, Trans Fat: 1g, Cholesterol: 70mg, Sodium: 1100mg, Potassium: 339mg, Fiber: 3g, Sugar: 4g, Vitamin A: 1134IU, Vitamin C: 9mg, Calcium: 168mg, Iron: 1mg
Nutrition Disclaimer: We are not certified nutritionists. Nutrition facts are an estimate and are provided as a courtesy. They are generated by an online API which recognizes ingredient names and amounts and makes calculations based on the serving size. Results may vary.
Author: Kat Jeter & Melinda Caldwell
Course: Side
Cuisine: American
Keyword: keto green bean casserole