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Keto Beef and Mushroom Casserole Recipe

4.6 from 95 reviews

This Keto Beef and Mushroom Casserole is a creamy, flavorful low-carb dish featuring ground beef, tender mushrooms, and a blend of rich cheddar cheese and heavy cream. Perfect for those following a ketogenic diet, this casserole combines savory herbs and beef broth for a comforting meal that bakes to bubbly perfection in the oven.

Ingredients

Scale

Main Ingredients

  • 1 pound ground beef
  • 2 cups sliced mushrooms
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 1 teaspoon thyme
  • Salt and pepper to taste

Liquids and Dairy

  • 1 cup heavy cream
  • 1/2 cup beef broth
  • 1 cup shredded cheddar cheese

For Cooking

  • Olive oil for cooking

Instructions

  1. Preheat Oven: Preheat your oven to 375°F (190°C) to prepare for baking the casserole.
  2. Sauté Aromatics: In a large skillet, heat olive oil over medium heat. Add diced onion and minced garlic, cooking until they are softened and fragrant, about 3-4 minutes.
  3. Cook Ground Beef: Add the ground beef to the skillet and cook until browned, breaking it up with a spoon. Once cooked, drain any excess fat to reduce grease.
  4. Add Mushrooms and Liquids: Stir in sliced mushrooms, beef broth, heavy cream, thyme, salt, and pepper. Continue cooking the mixture for 5-7 minutes until the mushrooms become tender and the sauce is well combined.
  5. Prepare for Baking: Transfer the beef and mushroom mixture to a greased 9×9-inch baking dish, spreading it evenly. Sprinkle the shredded cheddar cheese evenly over the top.
  6. Bake Casserole: Place the dish in the preheated oven and bake for 20-25 minutes until the cheese is melted, bubbly, and lightly golden.
  7. Serve: Remove the casserole from the oven and let it cool slightly before serving to allow the flavors to settle and avoid burning your mouth.

Notes

  • For a lower-fat version, substitute half-and-half for heavy cream.
  • You can add other low-carb vegetables like spinach or zucchini for extra nutrition.
  • Be sure to drain the cooked ground beef well to avoid a greasy casserole.
  • Leftovers keep well refrigerated for up to 3 days and reheat nicely.
  • Use sharp cheddar for a more pronounced cheese flavor.

Keywords: Keto beef casserole, low carb casserole, mushroom casserole, keto dinner, ground beef recipe, ketogenic casserole