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Creamy Mushroom Keto Casserole

Baked creamy mushroom casserole in a glass dish topped with melted cheese and fresh thyme sprigs.
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This creamy mushroom keto casserole is rich, cheesy, low-carb comfort food that’s easy to prep, full of flavor, and perfect for meal prep or a cozy dinner.

Ingredients

  • Mushrooms – provide savory flavor and meaty texture
  • Heavy cream – forms the rich, creamy sauce
  • Cheese (mozzarella, cheddar) – adds melty texture and richness
  • Garlic and onion – build the flavor base
  • Butter or olive oil – used to sauté and deepen flavor
  • Eggs – optional binder for structure
  • Herbs (thyme, parsley) – brighten and balance the dish
  • Salt and pepper – essential seasoning
  • Optional protein – adds heartiness (chicken, sausage, tofu)

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Sauté mushrooms, onion, and garlic in butter or oil until golden.
  3. Whisk cream, eggs (if using), herbs, and half the cheese in a bowl.
  4. Combine sautéed mixture with cream mixture in a baking dish. Add optional protein.
  5. Top with remaining cheese and bake uncovered for 25–30 minutes.
  6. Let rest for 10 minutes before slicing and serving.

Notes

  • Roast mushrooms first to reduce moisture for a firmer casserole.
  • Use a mix of mushroom types for richer flavor.
  • Add spinach, kale, or riced cauliflower for extra veggies.
  • Top with pork rinds or parmesan for crunch.
  • Great for freezing and reheating.

Nutrition

Find it online: https://recipeeasily.com/creamy-mushroom-keto-casserole/