Overnight Mixed Berry French Toast Casserole for Brunch

Warm and flavorful Mixed Berry French Toast Casserole with a delicious cream cheese drizzle that can easily be made the night before for the perfect morning breakfast!

Overnight breakfast casseroles are one of the easiest ways to feed a crowd or make a relaxed weekend morning feel special. This Mixed Berry French Toast Casserole combines cinnamon, vanilla, and maple with juicy berries and a creamy, lightly sweetened cream cheese drizzle. It’s ideal for summer holidays, family gatherings, or any morning when you want a comforting, make-ahead breakfast. You can assemble it the night before and bake it fresh the next morning, and leftovers reheat beautifully for several days.

Ingredients You’ll Need

This recipe uses simple pantry and fridge staples. Most of these ingredients are likely already on hand, and you can easily adapt the milk or bread to suit your preferences.

• Bread – A crusty loaf such as sourdough works best because it soaks up the custard without becoming overly soggy. Brioche, challah, or French bread are excellent alternatives.
• Eggs – Whisk thoroughly to create a smooth custard that will soak into the bread.
• Milk – Use your preferred milk: dairy, almond, oat, or another plant-based option will all work. Unsweetened almond was used here and was delicious.
• Greek yogurt – Adds creaminess to the custard without heavy cream, making the mixture slightly tangy and rich.
• Maple syrup – Natural sweetener that blends perfectly with cinnamon and vanilla. Reserve a little to drizzle after baking, if desired.
• Cinnamon and vanilla – Essential for warm flavor and aroma.
• Fresh or frozen berries – A mix of strawberries, blueberries, and raspberries is recommended, but use whatever you prefer. You can also fold a portion of the berries into the custard so they bake into the casserole.

How to Make Mixed Berry French Toast Casserole

This casserole is straightforward and forgiving, which makes it a great recipe for beginners and busy hosts alike. The steps below will result in a golden, custardy bake with juicy berry bursts and a smooth cream cheese drizzle on top.

1. Cut a loaf of bread into 1-inch cubes and arrange them in an even layer in a 9×13 baking dish prepared with nonstick spray.
2. In a large bowl, whisk together 6 eggs, 1 1/2 cups milk of choice, 1/2 cup plain Greek yogurt, 1/3 cup maple syrup, 2 teaspoons vanilla, and 1 teaspoon cinnamon until smooth.
3. Pour the egg mixture evenly over the bread, pressing lightly so the bread soaks up the custard. Cover the dish with foil and refrigerate for at least 4 hours, or preferably overnight. This resting time helps the bread absorb the custard fully for a tender interior.
4. When ready to bake, preheat the oven to 350°F (175°C) and remove the casserole from the fridge while the oven heats.
5. Keep the casserole covered and bake for 25 minutes. Then remove the foil and bake an additional 20–25 minutes, until the custard is set and the top is golden brown.
6. Remove from the oven, top with 1 cup fresh or frozen mixed berries (or more to taste), and finish with the cream cheese drizzle (see the next section). If you prefer, you can also serve with extra maple syrup or a dusting of powdered sugar.

The Cream Cheese Drizzle

The cream cheese drizzle brings a smooth, slightly tangy sweetness that complements the berries and maple in the casserole. It’s quick to prepare while the casserole bakes.

• In a small bowl, beat together 4 tablespoons cream cheese, 1 tablespoon maple syrup, and 2–3 tablespoons milk of choice until the mixture reaches a drizzly consistency. Add more or less milk depending on how thick you like the drizzle.
• Drizzle over the warm casserole just before serving, or pass it on the side for guests to add as they like.

Recipe Card

I hope you enjoy this Mixed Berry French Toast Casserole—easy to prepare, wonderfully festive, and always a crowd-pleaser. Perfect for holiday mornings or a leisurely weekend breakfast with family.