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Low Carb Breakfast Casserole

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A delicious low carb breakfast casserole filled with cheese, bacon, mushrooms, and spinach. Make ahead this low carb breakfast to have all week long!

I am a huge fan of breakfast casseroles…specifically Low Carb Breakfast Casserole with bacon.  This casserole only has the good stuff like eggs, spinach, mushrooms, and of course, bacon!

This low carb breakfast casserole is so easy to throw together on the weekend so you can have breakfast ready for the whole week.  You could also double the recipe and bake it in a larger casserole dish to take to a potluck or a brunch.

A casserole is probably one of my favorite breakfast ideas.  Sometimes I leave out all of the veggies and just put cheese and bacon.  That’s what I did with my Crustless Quiche Recipe.  That one is my sons favorite!

How to make the best low carb breakfast casserole

To get this breakfast casserole started, I first had to sauté my mushrooms and spinach with some garlic.  I sliced 8 ounces of mushrooms and I used a 5 ounce container of baby spinach.  It only took a few minutes to get the mushrooms a little soft and the spinach wilted down.

I also got my bacon cooked and drained on paper towels.  For the best bacon, please follow my tutorial How to Cook Bacon in the Oven!

I already had my beaten eggs in a bowl with the half and half and the cheese, then I just added in the cooked mushrooms and spinach.  I chose not to add any bacon into the casserole and just placed it on top.  You could definitely put cooked and chopped bacon, or even sausage into this low carb breakfast casserole.  I would use 6 slices of cooked bacon or half a pound of sausage inside the casserole.

I then poured the mixture into a greased 9 x9 casserole dish and baked it at 375F for 30 minutes, or until the center is set.  You can check for doneness by inserting a butter knife into the center of the low carb breakfast casserole.

Please checkout my other low carb breakfast recipes:

  • Keto Pancakes
  • Low Carb Biscuits and Gravy
  • Crustless Quiche
  • Egg Muffin Cups
  • Keto Breakfast Sandwich with Pancakes
  • Instant Pot Yogurt

Low Carb Breakfast Casserole

A delicious low carb breakfast casserole filled with cheese, bacon, mushrooms, and spinach. Make ahead for breakfast all week long!

5 from 4 votes

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Course: Breakfast
Cuisine: American
Keyword: brunch, gluten free, recipe for keto breakfast casserole
Prep Time: 5 minutes
Cook Time: 35 minutes
Total Time: 40 minutes
Servings: 6
Calories: 389kcal
Author: Jennifer Banz

INGREDIENTS

  • 12 large Eggs, Beaten
  • ½ Cup Half and Half
  • ½ teaspoon Kosher salt
  • ¼ teaspoon Pepper
  • 2 cups Shredded cheddar cheese
  • 1 tablespoon avocado oil (Click here for my favorite brand on Amazon)
  • 3 cloves Garlic, minced
  • 8 ounces Mushrooms, sliced
  • 5 ounces Raw baby spinach
  • 4 Slices Thick cut bacon, cooked and cut into 2 inch pieces

INSTRUCTIONS

  • Pre-heat the oven to 375F and spray a 9 x 9 casserole with cooking spray
  • In a large mixing bowl, add the eggs, half and half, salt, and pepper.  Whisk thoroughly.  Add in the cheese
  • In a large skillet over medium heat, add oil and garlic.  Sauté for 1 minute.  Add in the mushrooms and sauté for 1 minute more.  Finally, add in the spinach and mix in with the mushrooms.  Continue to sauté until the spinach is wilted.  Remove from the heat.
  • Add the spinach and mushrooms to the bowl with the eggs.  Mix to combine. Pour into the greased casserole and lay the bacon pieces on top.
  • Bake in the pre-heated oven for 30 minutes or until the casserole is set in the middle.
  • Serve hot, or wrap portions in foil or plastic wrap and store in the fridge up to 1 week.  

WATCH HOW TO MAKE IT

JENNIFER’S TIPS

  1. You can easily double this recipe and use a 9 x 13 casserole dish.  Bake for 45 minutes or until set.
  2. You can definitely use heavy cream instead of half and half if you want a lower carb count.
  3. You can add cooked sausage or crumbled bacon into the casserole.  I would use ½ pound of sausage cooked and crumbled, or 6 slices of bacon cooked and crumbled.  Add it to the egg mixture with the mushrooms and spinach.
  4. To check the low carb breakfast casserole for doneness…insert a butter knife into the middle of the casserole and check to see if the egg is set.
  5. This keto breakfast casserole is perfect for freezing.  You can bake the casserole in a foil pan, let cool, cover with foil and then freeze, or you can bake it, let cool, remove it from the pan, wrap very well in foil, and freeze.

NUTRITION

Calories: 389kcal | Carbohydrates: 4.9g | Protein: 26g | Fat: 29g | Fiber: 0.6g

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