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This low-carb bacon, egg, and spinach breakfast casserole has rescued my mundane breakfast! For several months now, I have been eating the same breakfast every day. Peanut butter toast on whole wheat bread, topped with honey is my favorite quick and easy breakfast. I love it, but I need to switch it up! I also wanted to cut back on carbs this week!

This casserole is easy to make. The key word here is LAYERS. Create the first layer by adding sauteed veggies to the bottom a baking dish.

Next, add frozen spinach.

Drizzle an egg mixture throughout.


Sprinkle cooked, crumbled bacon and shredded cheese over the top. Bake for 35 minutes.

I love casseroles! I really should make them more often. I love to combine a bunch of ingredients that pair well together, and then throw the dish in the oven and get back to life until it is finished baking. Casseroles are also a great way to sneak in nutritious veggies and high protein foods. A casserole will save you from having to prepare multiple side dishes for one meal.


Check out more Low Carb Breakfast Casseroles here with 10 Egg Casseroles You Can Make For Breakfast, Lunch, and Dinner.
Or if you are just looking for breakfast only, you can check out the Low Carb Breakfast Casseroles here with 39 Low Carb Breakfasts You Actually Want to Eat.
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Get your FREE printable Keto Grocery Shopping list here.
You may also enjoy these other Keto Breakfast Recipes: Keto Bacon Egg Bites, Keto Chaffles (Waffles), Smoked Salmon Eggs Benedict, Keto Cinnamon Rolls, and Keto Blueberry Muffins.
Click here for a complete listing of Keto Low-Carb Recipes.
Keto Low-Carb Bacon, Egg, and Spinach Breakfast Casserole
Ingredients
- 2 eggs
- 1 1/2 cups egg whites You can use 6-7 eggs (in addition to the ones noted above) if you don't want to use egg whites.
- 2-3 cups frozen spinach Thawed and drained. Thaw the spinach and drain the excess water.
- 6 slices bacon Cooked and crumbled
- 1 cup sliced mushrooms
- 1/2 cup chopped red onions
- 1/2 cup chopped green peppers
- 1/2 cup chopped red peppers
- 1 1/4 cup shredded cheddar cheese
- salt and pepper to taste
Instructions
- Preheat oven to 375 degrees. Spray a 9×13 baking dish with cooking spray.
- Place a skillet on medium-high heat. Add the chopped veggies (excluding the spinach) to the pan. Sautee for a few minutes until the veggies are soft.
- Add the veggies to the bottom of the baking dish. Spread the veggies throughout the dish.
- Add another layer, add the spinach.
- Whisk the egg whites and eggs in a small bowl. Season with salt and pepper. Pour the egg mixture over the veggies.
- Create an additional layer by adding the crumbled bacon and shredded cheese.
- Bake for 35 minutes.
- Remove from the oven. Allow to cool before serving.
Notes
- You can use any type of shredded cheese you like.
- You can use fresh spinach if you like.
- Store leftovers in the fridge tightly covered for 3-4 days.
- This dish can be frozen tightly sealed and covered for up to 3 months.
- You can add the mixture to a muffin tin to make muffins.
Denise
Saturday 8th of April 2023
How can I make this serve more people
staysnatched
Saturday 8th of April 2023
Double, triple the recipe, whatever you need.
Paige
Thursday 9th of February 2023
If using fresh spinach, should I saute it before adding to casserole dish? Or just add it raw?
staysnatched
Thursday 9th of February 2023
Either will work. It’s a matter of preference and the texture you like your spinach.
Kim
Monday 19th of December 2022
Can’t wait to try this for Christmas breakfast. In your photo, I see a yellow vegetable. Did you use all 3 colors of peppers, red green and yellow? Also, I will be omitting the mushrooms. Any other veggie I could use in place?
Kim
Thursday 22nd of December 2022
@staysnatched, thank you! One more question. Once you pour the egg mixture over top of the spinach and sautéed veggies, do you mix them together or leave them in the “layers”? Does it all combine while cooking?
Kim
Monday 19th of December 2022
@staysnatched, thanks for the reply! I’m also going to use whole eggs instead of egg whites. I see one comment said to use 10 large eggs in place of the egg whites.. so pretty much I would use 12 whole eggs?
staysnatched
Monday 19th of December 2022
Yes, I love using several peppers. All vegetables work for this recipe. I love mushrooms, use what you like.
Lynn
Sunday 6th of November 2022
Can the be put together the night before and baked the next morning?
staysnatched
Sunday 6th of November 2022
Probably. I haven't tested it because this is easy to prep.
Jeremy Bell AKA Dinga
Monday 12th of September 2022
My mouth watered with just writing this down, but when made...OMG it was fantastic.