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Healthy Sloppy Joe Casserole
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4.19 from 48 votes

Cheesy Sloppy Joe Casserole (keto)

Sloppy joe covered mushroom casserole with Monterey jack cheese topping. Low-carb and keto friendly, a healthy and easy weeknight dinner idea.
Prep Time10 mins
Cook Time25 mins
Total Time35 mins
Course: Main Course
Cuisine: American
Servings: 4
Calories: 264kcal
Author: Amber @ Low Carb Quick


  • 1 lb lean ground beef
  • 8 oz baby bella mushrooms chopped
  • 1/2 cup tomato sauce
  • 1 yellow onion diced
  • 1/2 large green bell pepper, diced finely
  • 2 tbsp Worcestershire sauce
  • 2 tbsp dijon mustard
  • 2 tbsp powdered erythritol
  • 1 tbsp xanthan gum (to thicken, optional)
  • 2 cups monterrey jack or pepper jack cheese


  • Preheat oven to 350º F. Remove stems from mushrooms and set aside.
  • Brown ground beef on med heat. Add all other ingredients, including mushrooms. Stir occasionally. Drain thoroughly.
  • Spray baking dish with non-stick spray. Add ground beef mixture.
  • Layer Monterey Jack cheese on casserole and bake for 15 minutes or until cheese is golden.



Expert Tips
Drain ground beef thoroughly and use lean ground beef for this recipe for best results
Keep in air-tight container in the fridge for up to 3 days.
Ground beef mixture may be frozen for later use and thawed overnight in the fridge.


Calories: 264kcal | Carbohydrates: 8g | Protein: 37g | Fat: 7.6g | Saturated Fat: 2.7g | Cholesterol: 101mg | Sodium: 411mg | Fiber: 2.4g