Creating Keto Breakfast Casserole is simple if you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish with cooking spray or butter.
2. Whisk Eggs and Cream: In a large bowl, whisk together the eggs and heavy cream until well combined.
3. Add Seasonings: Stir in the garlic powder, onion powder, salt, and pepper to taste.
4. Combine Ingredients: Fold in the cooked bacon, chopped spinach, diced bell peppers, and shredded cheese into the egg mixture.
5. Pour Mixture: Pour the entire mixture into the prepared baking dish, ensuring an even distribution of ingredients.
6. Bake: Place the dish in the preheated oven and bake for 30-35 minutes, or until the casserole is set and golden on top.
7. Cool Slightly: Once baking is complete, allow the casserole to cool for 5-10 minutes before slicing into squares for serving.
8. Store Leftovers: If you have any leftovers, store them in an airtight container in the refrigerator for up to 5 days.

These straightforward instructions will guide you through the process of creating this delicious and nutritious casserole effortlessly.