Overnight Breakfast Casserole

Why You’ll Love This Recipe

It’s simple to prepare the night before, making mornings stress-free. The combination of tender baked bread and juicy berries creates a balance of textures, while the applesauce or mashed banana adds natural sweetness and moisture. It’s also versatile and easily adapted to suit dietary preferences.

Ingredients

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

6 cups berries (32 oz)
1 lb thick bread
1 1/3 cup applesauce or mashed banana
2/3 cup milk of choice
2/3 cup egg whites or additional milk of choice
1/4 cup pure maple syrup or agave or honey
1 tsp pure vanilla extract (optional)

Directions

1. Lightly grease a 9×13-inch baking dish.
2. Cut the bread into bite-sized cubes and place half in the bottom of the baking dish.
3. Evenly scatter half of the berries over the bread layer.
4. Repeat with the remaining bread and berries.
5. In a medium bowl, whisk together applesauce (or mashed banana), milk, egg whites (or additional milk), maple syrup, and vanilla extract if using.
6. Pour the mixture evenly over the bread and berries, pressing down gently to help the bread absorb the liquid.
7. Cover and refrigerate overnight, or for at least 6 hours.
8. In the morning, preheat oven to 350°F (175°C) and bake uncovered for 35–40 minutes, until the top is golden and the casserole is set.
9. Let cool slightly before serving.

Servings and timing

Serves: 8–10
Prep time: 15 minutes (plus overnight chilling)
Cook time: 40 minutes
Total time: About 9 hours including chilling

Variations

• Use a mix of berries such as blueberries, raspberries, and strawberries for color and flavor variety.
• Replace bread with gluten-free bread for a gluten-free version.
• Add a sprinkle of cinnamon or nutmeg for warmth.
• Top with sliced almonds or chopped pecans before baking for crunch.

Storage/Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the microwave for 30–40 seconds per slice, or warm the whole dish in a 300°F (150°C) oven until heated through. Freezing is possible, but texture may be slightly softer after thawing.

FAQs

Can I use frozen berries?

Yes, just add them directly without thawing to prevent excess liquid.

What type of bread works best?

Thick, sturdy bread such as challah, brioche, or sourdough holds up well to soaking.

Can I make this without added sweetener?

Yes, the fruit and applesauce/banana provide natural sweetness.

Can I use whole eggs instead of egg whites?

Yes, replace the egg whites with 3–4 whole eggs for a richer texture.

How do I prevent the casserole from being soggy?

Make sure to bake until the custard is fully set and avoid using overly soft bread.

Can I make this dairy-free?

Yes, simply use a plant-based milk.

Can I assemble it in the morning and bake immediately?

Yes, but the flavor and texture improve with overnight soaking.

What toppings go well with it?

Yogurt, nut butter, whipped cream, or an extra drizzle of maple syrup are all great choices.

Can I add other fruits?

Yes, sliced peaches, apples, or pears also work well in place of some berries.

Is this good served cold?

Yes, it can be enjoyed warm, at room temperature, or chilled.

Conclusion

This Overnight Breakfast Casserole is an easy, make-ahead dish that delivers both convenience and flavor. With its fruity sweetness, tender bread, and wholesome ingredients, it’s perfect for feeding a crowd or enjoying throughout the week.

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