Keto Cinnamon Roll French Toast Casserole – Soft, Sweet & Sticks With You

If you’ve ever wanted a breakfast that feels like dessert but fits your keto diet menu, then this Keto Cinnamon Roll French Toast Casserole might just be the real star of your weekend mornings. We’re talking soft on the inside, a little crispy on top, rich with cinnamon, and yeah, magically delicious without the carb crash.

Whether you’re on a full ketogenic diet meal plan or you’re just dipping your toe into low carb breakfast recipes, this casserole’s gonna hug your cravings like a warm blanket. Plus, it’s perfect for making ahead. Yep, this is your go-to french toast casserole overnight prep kind of deal, less morning hassle, more morning yum.

The Backstory: Sunday Mornings Changed Forever

This recipe came out of a total kitchen experiment one sleepy Saturday night. I had a leftover batch of keto breads I made earlier in the week, some eggs, heavy cream, and a full bottle of cinnamon. I remembered how my grandma used to make a French toast casserole with sandwich bread—white bread, soaked overnight and baked with love. Mine needed to be different though. Low-carb. No sugar. Still sweet.

So I played around. And somehow? This turned into a cross between a French toast cinnamon roll bake and those cinnamon toast roll ups my sister used to sneak into the toaster oven. One bite in and I knew this was gonna hit every sweet tooth in the low-carb crowd.

Why This Casserole Works

Let’s face it—most keto desserts are either too dense or taste like fake sugar. This one? Nah. It’s soft, fluffy, slightly custardy, and has that buttery cinnamon sugar vibe that reminds you of a real cinnamon roll roll up, minus the sugar crash. Plus, the smell that comes out of your oven? You’re gonna want to bottle that and wear it like perfume.

This dish is great for:

• Breakfast low carb options that don’t feel like punishment.

• Holidays or lazy Sundays when you want something special.

• A meal prep win when you need something ready-to-bake the next day.

• Turning leftover keto breads into something better than toast.

Let’s get into the details.

Ingredients You’ll Need for This Recipe

For the casserole:

• 6 slices of thick keto sandwich bread (or any keto breads you love)

• 5 large eggs

• 1/2 cup heavy cream

• 1/4 cup unsweetened almond milk

• 2 tsp cinnamon

• 1 tsp vanilla extract

• 3 tbsp powdered erythritol (or any keto-friendly sweetener)

• Pinch of salt

• 2 tbsp butter, melted

For the cinnamon swirl:

• 2 tbsp butter, softened

• 2 tbsp erythritol or monk fruit sweetener

• 1 tsp cinnamon

For the icing (optional but honestly, don’t skip it):

• 3 tbsp cream cheese, softened

• 1 tbsp heavy cream

• 1 tbsp powdered sweetener

• 1/2 tsp vanilla

Step-by-Step Instructions for Keto Cinnamon Roll French Toast Casserole

1. Prep the Bread

Cut your keto bread slices into strips or cubes—whatever feels good. I’ve tried both ways and honestly? The rolled up French toast vibe with strips feels more fun and gives that cinnamon roll roll ups kind of texture.

You can even use leftover french toast french bread if you’ve got a keto version lying around. Dry bread works best. If it’s fresh, just toast it a bit first.

2. Mix the Custard

In a bowl, whisk together the eggs, heavy cream, almond milk, vanilla, cinnamon, sweetener, and a pinch of salt. This is your creamy base that makes every bite melt in your mouth.

Pour this over the bread in a big bowl and gently stir until it’s all soaked up. Let it sit for 5–10 minutes so everything soaks in like a sponge.

3. Swirl That Cinnamon

Mix your softened butter, sweetener, and cinnamon in a small bowl until you’ve got a smooth paste. Now, here’s the magic move: drop spoonfuls of this mixture all over your soaked bread. You want pockets of cinnamon swirl in every bite, like the gooey part of a cinnamon roll.

4. Assemble & Chill

Grease a baking dish and layer in the soaked bread. Drizzle melted butter on top. Cover with plastic wrap and chill it in the fridge overnight. Yes, it’s a proper french toast casserole overnight type of magic.

(But hey, if you’re impatient—you can bake it right away too. Just know the texture hits different after a good night’s rest in the fridge.)

5. Bake It Up

In the morning, preheat your oven to 350°F (175°C). Remove the plastic wrap and bake for 35 to 45 minutes, until the top is golden and the inside isn’t jiggly. If the top starts browning too fast, cover loosely with foil.

The smell? You might have neighbors knocking at your door.

6. Make the Icing

While it bakes, mix together cream cheese, cream, vanilla, and sweetener until it’s smooth. When the casserole’s hot out the oven, drizzle this on top like a frosting crown.

And there it is—French toast cinnamon roll bake, keto style. No flour, no sugar, no stress.

Swaps & Tips

What Bread Works?

Any keto sandwich bread works. I’ve even made it with keto bagels, sliced up like French toast with white bread style. Just make sure it’s dry or toasted. Soggy bread won’t hold the custard well.

Want to Go More Dessert?

Add chopped pecans or a few sugar-free chocolate chips. That pushes it into desserts keto people can feel smug about.

Not Doing Dairy?

Use coconut milk instead of cream and swap butter with coconut oil. The flavor changes slightly but still plays nice with cinnamon.

Make It Fit Your Life

This is the kind of recipe that doesn’t care if you eat it for breakfast, dessert, or that awkward 3 p.m. snack window. It fits anywhere. It’s low carb, it feels cozy, and it’s the type of thing people ask for again and again.

You can cut it into squares for meal prep or scoop out warm chunks with a spoon like it’s cobbler. My kid called it “pudding cake French toast” and honestly, I didn’t correct her.

It also stores well. Leftovers keep in the fridge for up to 5 days, or you can freeze slices wrapped in foil and reheat in the oven. Just like those old-school cinnamon toast roll ups, but better for your brain and belly.

Rich Variations to Try Next

• French toast casserole with sandwich bread – but make it keto.

• French toast with white bread – swap in low-carb white bread versions.

• Roll up French toast – roll your keto bread before soaking for that pull-apart feel.

• Cinnamon roll roll ups – twist strips of bread with cinnamon butter before baking.

Mix it up and play around. That’s half the fun.

Conclusion

This isn’t just a low carb breakfast recipe. It’s a little ritual. You build it the night before. You bake it while the coffee brews. Then, you eat something warm, sweet, and satisfying, without kicking yourself out of ketosis.

If you’re following a ketogenic diet meal plan or just trying to eat better without missing out, this one’s going to be a regular in your kitchen. It checks all the boxes for keto French toast fans. It’s simple. It tastes like home. And it doesn’t need syrup to shine (though if you’ve got a keto one, don’t let me stop you).

Next time you’re craving something that feels like dessert but fits the plan, remember this casserole. Because French toast roll ups shouldn’t just live in childhood memories or carb-loaded diners.

Sometimes, they should live in your keto oven, too.

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