The Best Keto French Toast Casserole


French toast has ALWAYS been my favorite breakfast treat. I can remember it being a part of that special Saturday morning breakfast as a kid, and I have loved it ever since. Waffles are great and pancakes are awesome, but there is nothing better than some good French Toast.

Luckily, this 100% keto version means that I can still enjoy an old favorite, just without the carbs and sugar that used to come with it!

But, being French Toast isn’t the only thing this keto French Toast has going for it. Equally as great is that this is a casserole! Casseroles are great because they are always so easy but delicious. 

This easy  Keto French Toast casserole can be thrown together for a get-together brunch, a quick weekday breakfast, or for a special-occasion (like Mothers Day Brunch!).

Even though we love eggs for breakfast, I should point out that this French Toast casserole does NOT have that eggy taste that plagues most keto-breads. Instead, the only flavors you’ll taste is that sweet, sweet French Toast taste you know and love. 

keto French toast in a baking dish

Best Tasting Keto Powdered Sweetener

Everyone knows that French Toast is nothing without that light, sweet, and airy powdered sugar sprinkled all over the top! 

Even though this French Toast is 100% keto, you can (and absolutely should) still have some of that sweet powdered sugar! Lakanto makes the most amazing keto friendly sweeteners, and they even have a keto powered sweetener

This stuff is absolutely amazing because it looks and tastes EXACTLY like traditional powdered sugar. 

Shop Lakanto’s site and use our code, “BUTTERTOGETHER” at checkout to save 10% off your entire purchase! That includes powdered sweetener, but also all of their other amazing keto friendly products like monk fruit, brownie mixes, and so much more! 

top shot of keto bread loaf

Ingredients To Make French Toast Casserole

This recipe is really as easy as making French Toast! Of course, you have a couple of choices to make as far as what bread you will use.

We opted to use our perfect new keto bread and it worked perfectly with this recipe. We cannot recommend this keto bread enough. 

Alternatively, you can opt to use any other keto friendly bread, whether it be homemade or store-bought. Your bread of choice will work wonderfully for this recipe!

  • Keto Bread – did I mention our new keto bread? Its amazing!
  • Milk of choice – We opted to use almond milk but feel free to use the milk of your choice. Oat milk is another that would work well.
  • Lakanto Powdered Sweetener – All of Lakanto’s products are amazing! Their powdered sweetener is a must for this keto French toast casserole. 
  • Heavy Whipping Cream – Or full fat canned coconut milk for a fairy free version!
  • Cinnamon – This is a must for any sweet tasting breakfast! Or substitute with Pumpkin Spice for a fall flavor!
  • Almond Extract – Enhances the flavor!
  • Vanilla Extract – Gives a nice light vanilla flavor. 
  • Pinch of nutmeg – A little spice makes everything nice.

How To Make Keto French Toast Casserole

cut up pieces of keto bread in a baking dish

(scroll down to recipe card for full ingredients & instructions)

Cut the bread into cubes and toast under the broiler.

four eggs in a mixing bowl

In a mixing bowl, whisk together the eggs

Add in heavy whipping cream

tsp of vanilla extract over a mixing bowl

Mix in cinnamon, almond milk, powdered sweetener, nutmeg, almond extract, and vanilla extract.

wet mixture being poured over the bread cubes

Pour the wet mixture over the bread cubes, and allow to soak in the fridge for 2-3 hours. 

soaked bread cubes in a baking dish

Preheat the oven to 350 degrees. Bake the casserole for 35-40 minutes. Let cool for a few minutes, garnish with powdered sugar substitute and fresh berries before serving.

close up keto French toast

Best Toppings For French Toast

We used Lakanto’s powdered sweetener and some of our favorite berries, but of course there is no limit to the toppings you can add to your keto French Toast casserole. Walnuts, pecans, or even a keto jam would be great with this keto French toast casserole. 

Use what you have on hand or use your favorite keto friendly toppings. Whatever you choose, make sure it includes ChocZero’s amazing keto friendly syrups! I mean, what is French toast without syrup??

While everyone knows and loves traditional maple syrup, it is basically liquid sugar. So instead of that, we love to use ChocZero’s keto friendly caramel, chocolate, or maple syrup (usually all three, if I’m being honest). It is so yummy, has the perfect consistency, and just generally tastes amazing!

If you want to give ChocZero’s syrups a try (and trust me, you definitely do!), shop their website and use our code, “buttertogetherkitchen” at checkout to save 10% on your entire purchase! In addition to amazing syrups, ChocZero also has the BEST chocolate I have ever tasted so be sure to pick some of that up as well. 

close up serving of keto French toast


How To Store Keto French Toast Casserole

If you end up with some leftovers (I applaud your willpower), the best way to keep this keto French toast casserole is to place it in an airtight container and place it in the fridge where it will last for about three days. If you opt to freeze your leftovers, they will keep for about 2 months in the freezer.

Then, when you’re ready to have your leftovers, just pop them in the microwave or preheated oven and heat until warm. To keep this French toast nice and moist, pour a little extra milk over the top of it before reheating.

More Keto Breakfast and Brunch Ideas

Click HERE To Pin Keto French Toast Casserole

Have you tried this recipe or any other recipe on the blog? Please rate it below and let us know what you think in the comments! We love hearing from you!

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0.0(not rated)

1 hour

8 servings


1 Loaf of keto bread premade
4 Large eggs
½ C. Heavy whipping cream
¼ C. Almond milk
1 tsp. Cinnamon
½ tsp. Almond extract
1 tsp. Vanilla extract
⅓ C. Lakanto Powdered sugar substitute, plus more for garnish
Pinch of nutmeg
Fresh berries for garnish
Nutritional Information
286 Calories
21.5g Total Fat
6.5g Net Carbs
11g Protein


Heat the oven on broil
Cut the bread into cubes and toast under the broiler.
Place the toasted bread cubes into a 9x9 baking dish.
In a mixing bowl, whisk together the eggs, heavy whipping cream, almond milk, cinnamon, almond extract, vanilla extract, nutmeg and Swerve sugar substitute until well combined.
Pour the wet mixture over the bread cubes, and allow to soak in the fridge for 2-3 hours.
Preheat the oven to 350 degrees.
Bake the casserole for 35-40 minutes.
Let cool for a few minutes, garnish with powdered sugar substitute and fresh berries before serving.


Make our Keto Bread Loaf Recipe for the french toast or purchase a premade low carb bread at the store.

Nutritional Disclaimer: We are not certified nutritionists. Nutritional data is provided as a courtesy. The information provided is calculated through a free-web based nutrition calculator and is not guaranteed to be accurate. To ensure we provide you with good information, we look at a variety of calculators.