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Keto Green Bean Casserole with bacon crumbles and mushrooms in a white baking dish.
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Keto Green Bean Casserole with Bacon and Mushrooms

This Low Carb Keto Green Bean Casserole is loaded with bacon, mushrooms and cheese. This holiday side dish favorite has only 6 net carbs per serving making it a great addition to your Keto friendly holiday menu. This reimagined holiday favorite is also budget friendly at only $0.93 per serving.
Prep Time10 mins
Cook Time45 mins
Total Time55 mins
Course: Side Dish
Cuisine: American
Keyword: Cream Cheese Recipes, Green Bean Recipes, Holiday Recipes, Holiday Side Dish, Keto, Keto Recipe, Keto Side Dish, Low Carb, Low Carb Recipe, Low Carb Side Dish, Mushrooms, Thanksgiving Recipes, Thanksgiving Side Dish
Servings: 8 People
Calories: 204kcal
Cost: $7.48


  • 4 Slices Bacon (Sugar Free) *Note 1
  • 2 Cups Mushrooms (Sliced) *Note 2
  • 1 Cup Yellow Onion (Diced)
  • 1 Cup Heavy Whipped Cream
  • 1/4 Cup Cream Cheese (Not Fat Free)
  • 1 tsp Salt
  • 1 tsp Black Pepper
  • 1/8 tsp Ground Thyme
  • 1 Lb Green Beans (Trimmed)


  • Cook the bacon using your preferred cooking method (oven/microwave/stovetop) until very crispy. We prefer to keep it simple by popping them in the microwave, covered, for about 3-4 minutes. Once cooked, transfer to a paper towel lined plate and set aside. Reserve a tablespoon of bacon fat.
  • Preheat the oven to 350 degrees.
  • Heat a large skillet over medium high heat and add the tablespoon of reserved bacon fat (* Note 3), mushrooms and onions and cook until golden brown (approx. 3-4 min.)
  • Add the heavy whipped cream, cream cheese, salt, pepper and thyme and bring to a boil. Stir consistently, until the mixture begins to thicken (approx. 4 minutes). Reduce the heat to medium and cook down until the mixture is thick (approx. 7 minutes).
  • While cooking the cheese sauce, bring a large pot of water to a boil.  Add the green beans and cook until slightly tender (5-7 minutes). Drain and pat dry with a paper towel.
  • Add the green beans to the cheese sauce and stir until evenly coated.
  • Transfer to a 8x8 inch pan and cook for 18-20 minutes.
  • Place the cooked bacon in a food processor and pulse until small crumbs form.  Sprinkle the bacon crumbles over the baked casserole and bake for another 5 minutes.
  • Remove from oven and enjoy immediately for best texture.


  1. Make sure to use sugar free bacon. 
  2. Use your preferred mushroom type- we prefer button, brown or white.
  3. If you didn't reserve any bacon fat, use 1 Tbsp of butter instead.


Serving: 1Portion | Calories: 204kcal | Carbohydrates: 8g | Protein: 4g | Fat: 18g | Saturated Fat: 10g | Cholesterol: 56mg | Sodium: 403mg | Potassium: 279mg | Fiber: 2g | Sugar: 3g | Vitamin A: 924IU | Vitamin C: 9mg | Calcium: 52mg | Iron: 1mg