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Keto Sausage Breakfast Casserole – A Hearty, Low-Carb Morning Favorite

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Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 8 servings
Ingredients Method

Ingredients
  

  • 1 pound (450 g) ground pork sausage (use sugar-free, mild or spicy)
  • 1 tablespoon olive oil or butter (if your sausage is lean)
  • 1 small onion, finely diced (about 1/2 cup; optional but flavorful)
  • 1 red bell pepper, diced (about 1 cup)
  • 2 cups fresh spinach, roughly chopped
  • 10 large eggs
  • 1/2 cup heavy cream (or unsweetened almond milk for lighter)
  • 1 1/2 cups shredded cheese (cheddar, mozzarella, or a blend)
  • 1 teaspoon garlic powder
  • 1/2 teaspoon smoked paprika (optional but adds depth)
  • 1/2 teaspoon dried Italian seasoning (or oregano)
  • Salt and black pepper, to taste
  • Cooking spray or butter for greasing the baking dish

Method
 

  1. Preheat the oven. Set to 375°F (190°C). Grease a 9x13-inch baking dish with cooking spray or butter.
  2. Cook the sausage. Heat a large skillet over medium heat. Add the sausage (and olive oil if needed). Cook, breaking it up with a spatula, until browned and cooked through, about 6–8 minutes. Drain excess grease if there’s a lot.
  3. Sauté the veggies. In the same skillet, add onion and bell pepper. Cook for 3–4 minutes until softened. Stir in spinach and cook just until wilted, about 1 minute. Season with a pinch of salt and pepper.
  4. Whisk the egg mixture. In a large bowl, whisk eggs, heavy cream, garlic powder, smoked paprika, Italian seasoning, 1 teaspoon salt, and 1/2 teaspoon pepper until smooth.
  5. Layer the casserole. Spread the cooked sausage evenly in the baking dish. Add the sautéed veggies on top. Sprinkle 1 cup of the shredded cheese over the mixture.
  6. Pour and top. Pour the egg mixture evenly over everything. Tap the dish gently on the counter to settle. Sprinkle the remaining 1/2 cup cheese on top.
  7. Bake. Place on the middle rack and bake for 25–35 minutes, until the center is set and the top is lightly golden. A knife inserted near the center should come out clean.
  8. Rest and serve. Let it cool for 5–10 minutes before slicing. This helps the casserole firm up and makes cleaner slices.