Cinnamon Raisin Breakfast Casserole is a comforting way to start your day. It’s a custard-filled casserole with cinnamon raisin flavor in every bite. Breakfast casseroles are my favorite way to make breakfast fun and easy.

Cinnamon Raisin French Toast Casserole in a white pan.

I’ve been experimenting with different types of overnight breakfast casseroles. I made a decadent Caramel Pecan Breakfast Casserole, which requires a sweet tooth. The wheels were turning as I wondered what else would taste good for breakfast.

Then it hit me. I saw raisin bread on sale in the flyer and knew what my next recipe would be. I whipped up this Cinnamon Raisin Breakfast Casserole, and it couldn’t have been better!

The base is raisin bread, which I love slathered with butter for breakfast. Instead, it’s topped with a milk and egg mixture and brown sugar and cinnamon. It’s sweet, yes, but so darn yummy!

Serve with pancake syrup!

A slice of the recipe on a serving spatula.

I guess another name for it could be a French toast casserole. It has just a few extras.

This casserole did not last long! I put a little bit of maple syrup on mine, but it would be fine without. I know I’ll be making this recipe again soon!

I think next I’ll have to try a savory breakfast casserole to balance out all these sweet ones! The sweet ones are hard to resist, though…

What If I Don’t Have Cinnamon Raisin Bread?

If you don’t have cinnamon raisin bread or don’t like raisins, you can always opt for regular bread. Or you could take it a step further and substitute croissants for the bread.

You just want to ensure that the bread is stiffer in texture so that it soaks up the egg mixture and creates the proper texture as it bakes.

Can I Double This Recipe?

Yes, you sure can. Just reach for a second pan and bake it that way. You don’t want your casserole to be too thick in texture, or you could risk it not being fully cooked. So, the best route when doubling is adding another pan and baking it that way.

You can also half the recipe and use an 8×8-inch pan for a smaller portion if necessary.

A slice of the recipe on a plate with a fork.

Storage Instructions

Leftovers can be stored in the refrigerator for up to five days. They are best when served warm and fresh. But if you want a quick reheated breakfast for the week, this works, too. Warm it up in the microwave or reheat it in the oven.

Can I Make Ahead of Time?

You can store this in the fridge for up to 24 hours. Then bake as directed below in the recipe. If you use a cold pan, add a little extra baking time to ensure it gets cooked.

How to Know When It’s Done

If you stick a toothpick or knife into the bread and pull it out, it will come out clean. If you see a custardy egg mixture, it is still raw and needs additional cooking time.

The top of the bread will also turn golden brown and harden a bit. Some spots will be a little crisper than others, but that adds a lot of texture and flavor to the recipe.

Pouring maple syrup on top of a slice of the recipe.

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Breakfast Casseroles

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4.42 from 12 votes