This delicious Low-Carb Green Bean and Mushroom Casserole recipe is perfect for the holidays! It can be a part of a low-carb, LC/HF, keto, Atkins, diabetic, or Banting diet.

 

Low-Carb Green Bean and Mushroom Casserole on a plate. Overhead view

 

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This Low-Carb Green Bean and Mushroom Casserole is loaded with green beans and mushrooms in a cheesy creamy sauce scented with garlic and onions. More cheese on the top adds even more parmesan goodness!

 

I was inspired to create this recipe by THE green bean casserole recipe. You know the one–It finds its way into every reunion, onto every Thanksgiving table, and into every pot-luck dinner. This onion-topped tradition is an old standby recipe that may just be more American than apple pie. 

 

Low-Carb Green Bean and Mushroom Casserole being spooned out of the pan.

 

Of course, the traditional recipe made with a can of soup and fried onions doesn’t quite work with a low-carb diet, so I went to work in the kitchen. I can’t have my followers missing out on a green bean casserole this Thanksgiving! 

 

My version uses real sliced mushrooms and a creamy sauce made from parmesan and garlic infused cream cheese. Instead of using fried onions on top, I put the onion flavor in the sauce using onion powder instead of onions to keep the carb count down. That doesn’t mean that the top of the casserole is boring! Lots of grated parmesan crowns this casserole with cheesy goodness.

 

Don’t miss out on green bean casserole this holiday season! Go ahead–celebrate the holidays with this low-carb version of an American tradition! Enjoy!

 

-Annissa

 

 

PS: Don’t forget to check out our other recipes that are perfect for the holidays! Our pecan stuffing, cranberry sauce, and pumpkin mousse pie are sure to make your Thanksgiving special! This easy keto cranberry sauce from Keto Cooking Wins and a ham made with this sugar free ham glaze from My Life Cookbook will also add goodness to your holiday table.

 

Low-Carb Green Bean and Mushroom Casserole on a plate.

 

 

 

Low-Carb Green Bean and Mushroom Casserole being spooned out of the baking dish.
5 from 5 votes
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Low-Carb Green Bean, Mushroom, and Parmesan Casserole

This delicious Low-Carb Green Bean and Mushroom Casserole recipe is perfect for the holidays! It can be part of a low-carb, LC/HF, keto, Atkins, diabetic, or Banting diet.

Course Side Dish
Cuisine American
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings 9
Author Annissa Slusher

Ingredients

  • 1 pound green beans fresh or frozen, sliced into 1-2 inch segments.
  • 2 tablespoons butter
  • 8 ounces mushrooms sliced
  • sea salt
  • black pepper freshly ground
  • 8 ounces cream cheese room temperature
  • 1 tablespoon white wine vinegar
  • 2 cloves garlic peeled and crushed
  • 1 1/2 teaspoon onion powder
  • 1/2 cup chicken or vegetable stock low salt
  • 1/4 teaspoon sea salt or to taste
  • 1 cup parmesan cheese finely grated, quantity divided

Instructions

  1. Preheat oven to 350º Fahrenheit. Prepare a 8" X 8" baking pan by spraying it with coconut oil spray or greasing with butter.

  2. Fill lower part of steamer with 1 1/2 to 2 inches of water. Bring water to a simmer.

  3. When water has reached a simmer, place green beans in the top portion of the steamer. Sprinkle lightly with salt. Cover and place over the simmering water in the lower portion of the steamer. Steam beans until crisp-tender--about 8-10 minutes. Transfer beans to the prepared baking pan.

  4. Heat a large skillet over medium-high. Add butter. When butter has melted and has stopped foaming, add mushrooms. Lightly season mushrooms with salt and pepper.

  5. Cook mushrooms, stirring occasionally, until tender--about 5 minutes. Transfer to baking dish.

  6. Meanwhile, In a large mixing bowl, whip cream cheese with a mixer until smooth. Blend in vinegar, garlic, and onion powder.

  7. Gradually add the stock, one tablespoon or so at a time, mixing until smooth after each addition. Stir in 1/2 cup of parmesan cheese. Taste and add salt if necessary.  Taste after salting and adjust seasoning if needed.

  8. Spread the cream cheese mixture over the beans and mushrooms in the baking dish. Sprinkle the remaining parmesan over top. Bake in the preheated oven until bubbly in the center and cheese is melted--about 35 minutes.

  9. If cheese topping is not browned to your liking, place under the broiler for 1-2 minutes to brown. Allow to cool 5-10 minutes before serving.

Recipe Notes

Serving size: 1/9th of the casserole

Per serving: 

Calories: 321

Fat (g): 23

Carbs (g): 7

Fiber (g): 2

Protein (g): 20

Net carbs (g): 5