Why You’ll Love This Recipe

This recipe is incredibly easy—just layer, chill, and bake. It’s healthy, customizable, and perfect for feeding a crowd. Whether you’re hosting guests or want a stress-free breakfast, this casserole delivers with vibrant flavor and a satisfying texture.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

Berries
Thick bread
Applesauce or mashed banana
Milk of choice
Egg whites or additional milk
Maple syrup, agave, or honey
Vanilla extract (optional)

Directions

Prepare the Bread: If your bread isn’t already slightly stale, dry it out by leaving it uncovered for a day or baking at 300°F for 15 minutes.
Assemble the Casserole: Grease a 9×13-inch pan. Cut the bread into 1-inch cubes and place them evenly in the pan.
Make the Custard: In a bowl, whisk together applesauce, milk, egg whites (or additional milk), sweetener, and vanilla if using.
Combine: Pour the liquid mixture evenly over the bread cubes, then scatter the berries over the top.
Chill: Cover the dish and refrigerate overnight to allow the bread to absorb the mixture.
Bake: The next morning, preheat the oven to 350°F. Bake the casserole for about 1 hour, or until the top is lightly golden and set.
Serve: Enjoy warm or cold, straight from the oven or later as a chilled treat.

Servings and Timing

Yield: 8–12 servings
Prep Time: 15 minutes
Chill Time: Overnight
Cook Time: 1 hour
Total Time: About 1 hour and 15 minutes (plus overnight chill)

Variations

Berry Mix: Use a combination of blueberries, raspberries, and blackberries.
Add-ins: Try chopped nuts or a swirl of nut butter.
Sweetness Level: Adjust the maple syrup to your preferred sweetness.
Spices: Add cinnamon or nutmeg for extra flavor.

Storage/Reheating

Refrigerate: Store leftovers in an airtight container for up to 4 days.
Reheat: Warm individual slices in the microwave or oven.
Freeze: Freeze in portions for up to 2 months. Thaw overnight before reheating.

FAQs

Can I use frozen berries?

Yes, no need to thaw—just layer them in as is.

Can I make this gluten-free?

Absolutely. Just use your favorite gluten-free bread.

What type of bread works best?

Thicker, crusty breads like sourdough or whole grain hold up well.

Can I skip the sweetener?

Yes, especially if you prefer a less sweet breakfast or are using very ripe fruit.

Is it okay to use flavored milk?

Yes, but consider reducing the vanilla or sweetener.

Can I prep this in the morning instead?

Letting it sit overnight yields the best texture, but a few hours ahead can still work.

How do I prevent it from being soggy?

Dry out the bread well and bake until golden and set.

Can I add protein powder?

Yes, mix it into the custard mixture before pouring over the bread.

Can I use just whole eggs?

Yes, replace the egg whites with 2–3 whole eggs.

What should I serve this with?

It pairs great with yogurt, fresh fruit, or a drizzle of nut butter.

Conclusion

This Overnight Breakfast Casserole is your go-to for a nutritious and hassle-free start to the day. With its flexibility, simplicity, and crowd-pleasing taste, it’s sure to become a breakfast staple in your home.