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Low Carb Keto Breakfast Casserole

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A hearty, keto-friendly baked breakfast combining eggs, sharp cheddar cheese, spinach, and bell peppers for a satisfying meal under 5g net carbs. Perfect for busy mornings or weekend brunch with a rich, golden texture and savory flavor.

  • Total Time: 50
  • Yield: 8 servings 1x

Ingredients

Scale

8 large eggs
2 cups shredded sharp cheddar cheese
2 cups fresh spinach (about 10 oz), roughly chopped
1 cup diced bell peppers (1 green and 1 red)
2 tablespoons olive oil
1 teaspoon salt
1/2 teaspoon black pepper
1/2 teaspoon garlic powder

Instructions

15 minutes: Preheat oven to 350°F (175°C)
Line a 9×13-inch baking dish with parchment paper and brush with olive oil
In a large bowl, whisk eggs until frothy
Add cheese, spinach, bell peppers, salt, pepper, and garlic powder; mix well
Pour mixture into prepared dish
Bake for 35 minutes or until golden and set
Let rest for 10 minutes before slicing

Notes

Make ahead: Prepare overnight and refrigerate until baking
Customize with zucchini, mushrooms, or bacon (ensure no pork/lard)
Store leftovers in an airtight container for 3-4 days
Reheat gently in oven or microwave

  • Author: Sabella
  • Prep Time: 15
  • Cook Time: 35
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American
  • Diet: Keto

Nutrition

  • Serving Size: 1 serving
  • Calories: 320
  • Sugar: 2g
  • Sodium: 800mg
  • Fat: 25g
  • Saturated Fat: 14g
  • Carbohydrates: 5g
  • Fiber: 2g
  • Protein: 20g
  • Cholesterol: 250mg