Ready for the ultimate keto breakfast recipe? Dig into this absolutely delicious Keto French Toast Casserole!

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Breakfast is made easy with this hearty and filling breakfast casserole that will remind you of both French toast and cinnamon rolls! This is one of my go-to breakfast recipes when I have company over (trust me, they won’t know it’s keto), and it’s also great for meal prep because it lasts several days in the fridge.
Why You’ll Love This Keto French Toast Casserole Casserole
- It tastes ridiculously delicious. Imagine French toast paired with a delicious crunchy brown sugar-cinnamon edge. Keto breakfasts don’t get much better than this casserole!
- It can be mostly prepared the night before. One of the steps of this casserole asks you to soak the cubed keto bread in an egg mixture. This can be done overnight so you only have to quickly bake the casserole in the morning before you serve it fresh.
- It’s filling. With ingredients like butter, heavy whipping cream, and eggs, this breakfast casserole definitely won’t leave you hungry!
- It’s packed with fiber. Each serving of this breakfast casserole contains 14g of fiber! The average recommended daily intake is 25-30g a day, so eating this for breakfast will give you a great start on your daily intake.
Ingredients Needed to Make Low Carb French Toast Casserole
Ingredient quantities for this homemade casserole are located in the recipe card at the end of the post.
- Keto bread (I used Nature’s Own Soft White Keto Bread, which has 1g net carbs per slice – please note that this bread does contain gluten, so if you are gluten-free, you will need to use a gluten-free variety or make your own)
- Butter
- Heavy whipping cream
- Eggs
- Vanilla extract
- Cinnamon
- Salt
- Swerve Confectioners or other powdered sugar substitute
- Swerve Brown or other brown sugar substitute
Optional toppings:
- Swerve Confectioners or other powdered sugar substitute
- Keto maple syrup
- Keto Whipped Cream
How to Make Keto French Toast Casserole {Photo Overview}
This is just a quick overview of some of the steps involved in making the low carb breakfast casserole. For the recipe in detail, including exact measurements used at each step, scroll to the recipe card at the end of the post.
⭐ TIP: You can easily make this an overnight breakfast casserole by doing steps 1-4 the night before and proceeding with the remaining steps in the morning before breakfast (which will take about 45 minutes).
Photo 1: Add prepared bread to the bottom of a casserole dish (I used a 9″ x 13″ dish) greased with the butter.
Photo 2: Add remaining Casserole Ingredients to a bowl…
Photo 3: … and mix to combine.
Photo 4: Pour mixture over bread and place the casserole dish in the fridge for 3-4 hours, or overnight.
Photo 5: Pull the casserole dish out of the fridge and preheat the oven. Place the dish into the preheated oven.
⭐ TIP: If you’re using a glass casserole dish, make sure the glass reaches room temperature before placing it in the oven.
Photo 6: When the casserole is baking, make the topping using the Topping Ingredients.
Photo 7: Remove the casserole from the oven…
Photo 8: … and top with the topping. Return it to the oven and bake until the topping is browned and bubbly.
⭐ TIP: Cool for 5-10 minutes before serving!
Look at that gooey, sweet casserole piece 😍 If it reminds you of a cinnamon roll, you’re right! It pretty much tastes like one. Optionally top with Swerve Confectioners or another powdered sugar substitute, keto maple syrup, and/or Keto Whipped Cream.
How to Prepare Bread for This Casserole
So the egg mixture can fully soak into the bread, the bread must be dried out prior to making the casserole. Here are two methods for you, depending on how much time you have available:
- Slow dry: Lay the bread out on cooling racks (or baking sheets) and let it dry out for about four hours. Then, flip the bread over and leave it out for another four hours.
- Fast dry: Lay the bread on baking sheets and bake for five minutes on each side at 275 F.
More Keto Breakfast Ideas
- Make this popular keto breakfast casserole with bacon, eggs, and veggies!
- And you can make this delicious sausage and egg breakfast casserole for family gatherings and holidays.
- Or, this easy keto quiche recipe that is loaded with flavor and satisfies every time.
- A southwestern breakfast skillet recipe has a wonderful mix of eggs, bacon, spices, onions, and radishes. Your family will love it!
- When it comes to perfect portions try this amazing 3-cheese mini quiche recipe. Your family will really enjoy these.
Nutrition Facts for This Easy Keto French Toast Casserole
Per serving (8 total servings):
- 429 calories
- 39g fat
- 17g protein
- 4g net carbs
More Healthy Breakfast Recipes
- A keto eggloaf will satisfy any of your French toast and maple syrup desires! This recipe works great as a toast substitute for this French toast casserole recipe.
- Make it a quick keto breakfast with one of these delicious keto mug cake recipes including gluten free blueberry mug cake, keto muffin in a mug, and a gluten free brownie mug cake!
- A keto breakfast cannot be complete without the delicious and crispy companion air fryer bacon. Loaded with flavor, bacon is almost a necessary food for the keto diet!
- This quick healthy gluten free omelet is single portion-sized and easy to make.
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Keto French Toast Casserole
Ingredients
Casserole Ingredients
- 1 tbsp butter
- 14 oz keto bread (about 14 slices; dried out – see recipe notes)
- 2 cups heavy whipping cream
- 6 eggs
- 2 tsp vanilla extract
- 1 tsp cinnamon
- 3 tbsp Swerve Confectioners or other powdered sugar substitute
- 1/8 tsp salt
Topping Ingredients
- 1/2 cup cold butter
- 1 cup Swerve Brown or other brown sugar substitute
- 1 tsp cinnamon
Instructions
- Grease a casserole dish (I used a 9" x 13") with butter.
- Cube prepared bread into ~1” pieces and spread evenly in the bottom of the casserole dish.
- In a mixing bowl, mix heavy whipping cream, eggs, vanilla extract, cinnamon, Swerve Confectioners, and salt until thoroughly combined.
- Pour egg mixture evenly over the bread in the casserole dish and refrigerate for 3-4 hours (or overnight).
- When ready to prepare the casserole, remove the casserole from the fridge and preheat the oven to 350 F. (If you're using a glass casserole dish, make sure the glass reaches room temperature before placing it in the oven.)
- Place the casserole dish into the preheated oven and bake for 25-30 minutes.
- While casserole is baking, make the topping by mixing the Topping Ingredients in a bowl until thoroughly combined.
- Remove the casserole dish from the oven and sprinkle the topping evenly over the French toast mixture.
- Return to the oven for an additional 15-25 minutes until the topping is browned and bubbly.
- Serve plain or topped with dusted Swerve Confectioners, keto maple syrup, or keto whipped cream.
Notes
- The nutrition facts for this recipe have been calculated using Brownberry Keto Bread.
- So the egg mixture can fully soak into the bread, the bread must be dried out prior to making the casserole.
- Slow dry: Lay the bread out on cooling racks (or baking sheets) and let it dry out for about four hours. Then, flip the bread over and leave it out for another four hours.
- Fast dry: Lay the bread on baking sheets and bake for five minutes on each side at 275 F.
Nutrition Disclaimer
Nutrition facts are included as a courtesy only. They are accurate to the best of our knowledge based on the ingredients and brands used, but their accuracy is not guaranteed. If applicable, sugar alcohols have already been removed from the total carb count.
We tried this recipe and liked it.
The texture was great and it made enough for a few breakfasts in a row!
There are a couple of things that might give me pause before making it again:
1. It requires quite a bit of babying, considering it’s a breakfast recipe. The instructions say it must be chilled in the fridge for 3-4 hours or overnight. Keep that in mind if you were wanting something to eat the same day. It won’t happen.
2. It’s very rich. I cut the sugar back by a 1/4 cup but it was still too strong and had an unpleasant aftertaste. I could try cutting it back even more, though.
I could see myself making this again at some point, but the fussiness would keep it from making it into a regular rotation.