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This overnight French toast casserole is the kind of dish that makes you look like you’ve got it all together, even if you’re just trying to sip your coffee before the day begins.

It's light and creamy from the custard and cream cheese, packed with juicy blueberries, and built on hearty sourdough that soaks up all the flavor.

It’s the perfect make-ahead breakfast for holiday mornings, whether that’s Christmas, Easter, or Mother’s Day.

Just assemble it the night before, bake it the next morning, and you’ve got a warm, impressive breakfast with barely any effort.

This blueberry French toast casserole totally delivers.

Craving something savory instead? Try my Sourdough Breakfast Casserole. It’s simple, crowd-pleasing, and hands-down the most popular recipe on the blog.

Yield: 8

Author: Kassandra

French Toast Casserole With Cream Cheese and Blueberries

This French Toast Casserole, a make-ahead breakfast perfect for brunch, holidays, or cozy weekends. Featuring sourdough, sweet berries, and creamy custard, it’s ideal for Mother’s Day, Easter, or Christmas morning. Easy to prepare!

Prep time: 20 MinCook time: 45 MinTotal time: 1 H & 5 M

Ingredients

4-6 cups sourdough bread, cubed
1 cup berries (blueberries, raspberries, blackberries, strawberries; fresh or frozen)
8 oz cream cheese softened
2 tablespoons of honey/sugar
8 large eggs
1 cup half n half or whole milk
½ cup granulated sugar
1 tablespoon vanilla
Zest of one lemon (optional)

Instructions

Grease a 9x13-inch baking dish with butter. Spread the bread cubes in the dish.
Mix together the softened cream cheese and honey until combined.
Sprinkle the berries over the bread.
Dollop the cream cheese mixture over the bread and berries.
In a large mixing bowl, whisk together the eggs, half n half/milk, sugar, vanilla extract and lemon zest (if using) until smooth and well combined.
Pour the custard evenly over the casserole, ensuring every piece is coated. Gently press the bread down with a spoon to help it soak up the liquid.
Preheat your oven to 350°F (175°C). Bake the casserole uncovered for 45–50 minutes, or until the top is golden brown and crisp.
Let the casserole cool slightly before serving. For an extra indulgent touch, drizzle with maple syrup or dust with powdered sugar. Pair with protein to create a perfectly balanced plate.

Notes

Make-Ahead Options

Night-Before Prep: Assemble the casserole, cover, and refrigerate overnight. Bake fresh in the morning.

Storage

Refrigerator: Store leftovers in an airtight container for up to 3 days.
Freezer: Cut baked portions, wrap, and freeze for up to 2 months.

Reheating

Oven: 325°F (160°C), covered with foil, for 15–20 minutes.
Microwave: 30-second intervals until warm.
Air Fryer: 350°F (175°C) for 5–7 minutes.

Perfect for Any Occasion

This casserole fits right in at any gathering, from holiday brunches to lazy weekends:

Mother’s Day Brunch: Sweet, cozy, and sure to impress.
Christmas Morning: Berries, cream cheese, and cinnamon? Yes please.
Easter Brunch: Pairs beautifully with ham, eggs, and other spring favorites.
Spring Gatherings: Bright flavors make it a seasonal standout.
Weekend Treat: Because cozy breakfasts shouldn’t need a reason.

Make-Ahead + Storage Tips

Make It Ahead:
Assemble the casserole the night before, cover, and refrigerate. Bake fresh in the morning.

Storing Leftovers:

Fridge: Airtight container, up to 3 days.
Freezer: Slice, wrap well, freeze up to 2 months.

Reheat Options:

Oven: 325°F, covered with foil for 15–20 minutes.
Microwave: 30-second bursts until warm.
Air Fryer: 350°F for 5–7 minutes for a toasty top.

Balance Your Plate

How to Add Protein for a Balanced Breakfast:

Each serving gives ~12–13g protein. Boost that with:

2–3 slices of bacon or sausage (10–15g)
2 eggs (12g)
1 cup bone broth with collagen (10–15g)
Whole milk with a scoop of collagen (18–20)

Balanced Plate Examples

Casserole + 2 sausage links + 1 egg = ~31g protein

Casserole + turkey bacon + bone broth = ~32g
Casserole + milk with collagen + 1 egg = ~30g

Why it matters: Balanced meals help regulate blood sugar, boost energy, and keep you full longer.

This French toast casserole with cream cheese and blueberries isn’t just a recipe, it’s a way to slow down, savor the moment, and feed the people you love. Hugs!