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Easy Low-Carb Sausage and Egg Breakfast Casserole Recipe for Perfect Keto Mornings

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A quick and easy low-carb sausage and egg breakfast casserole that’s perfect for keto mornings, combining savory sausage, fluffy eggs, and melty cheese for a comforting and satisfying meal.

Ingredients

Scale
  • 1 pound (450g) breakfast sausage, preferably pork
  • 10 large eggs (about 500g), room temperature
  • 1/2 cup (120ml) heavy cream, full-fat
  • 1 1/2 cups (150g) shredded sharp cheddar and mozzarella cheese blend
  • 1 small yellow onion, finely chopped (about 1/2 cup)
  • 2 cloves garlic, minced
  • 2 cups fresh baby spinach, roughly chopped (optional)
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 tablespoon butter or olive oil
  • 1 teaspoon dried thyme or Italian seasoning

Instructions

  1. Preheat your oven to 350°F (175°C).
  2. Heat a skillet over medium heat. Add 1 tablespoon of butter or olive oil, then add the ground sausage. Break it apart with a spatula and brown it until crispy bits form, about 7-10 minutes. Stir occasionally for even cooking. Drain excess fat if needed and transfer the sausage to a plate lined with paper towels.
  3. In the same skillet, add the chopped onion and cook until translucent, around 3-4 minutes. Add minced garlic and cook for another 30 seconds until fragrant. Stir in chopped spinach and cook until wilted, about 2 minutes. Remove from heat.
  4. In a large mixing bowl, whisk together the eggs and heavy cream until smooth. Season with salt, black pepper, and dried thyme or Italian seasoning.
  5. Add the cooked sausage and sautéed veggies into the egg mixture. Stir in 1 1/4 cups of shredded cheese, reserving about 1/4 cup for topping.
  6. Grease a 9×13-inch (23x33cm) baking dish lightly with butter or cooking spray. Pour the casserole mixture evenly into the dish. Sprinkle the reserved cheese on top for a golden crust.
  7. Place the dish in the preheated oven and bake for 30-35 minutes, or until the casserole is set in the middle and the top is lightly golden. Test doneness by inserting a knife; it should come out clean.
  8. Let the casserole cool for 5-10 minutes outside the oven to firm up, making slicing easier.
  9. Cut into squares and serve warm. Great with a side of avocado or fresh greens.

Notes

If the top browns too quickly but the casserole isn’t set, tent with foil halfway through baking. Use room temperature eggs for better blending and fluffier texture. Avoid overbaking to prevent dryness. For dairy-free, substitute heavy cream with coconut cream and use dairy-free cheese. Turkey sausage or vegetarian substitutes like mushrooms and tofu can be used.

Nutrition

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