Blueberry Lemon French Toast Casserole Overnight Recipe is a delightful blend of flavors and textures that brings the comfort of brunch to your home! Imagine waking up to the sweet aroma of blueberries and zesty lemons, already baking in the oven. This make-ahead dish is perfect for lazy weekends, special occasions, or whenever you want to impress your family or guests with minimal effort. The combination of creamy cream cheese, fresh blueberries, and the brightness of lemon zest elevates an ordinary breakfast into something truly special.
Why You’ll Love This Dish
This recipe is more than just another breakfast option—it’s a time-saver, a crowd-pleaser, and a delightful way to enjoy a Sunday morning. The convenience of preparing everything the night before means you can just pop it in the oven the next day, freeing up your morning for relaxing instead of stressing over a hot griddle. Perfect for holidays or brunch gatherings, this casserole is kid-approved and will surely satisfy adults too!
The blend of flavors in this dish makes it stand out. The rich cream cheese layers, vibrant blueberries, and tangy lemon create a beautiful symphony on your palate. Plus, using French bread gives it that perfect custardy texture, making every bite a comforting experience.
"This is my go-to breakfast for family brunches! Everyone raves about the flavors, and I love how easy it is to prepare the night before." – Sarah G., satisfied home cook.
How This Recipe Comes Together
Before diving straight into the ingredients, let’s break down how simple the cooking process is! You’ll start by creating a creamy, fruity mixture that will fill your casserole. Then, it’s just a matter of layering that goodness with bread, whisking together the egg mixture, and letting it soak overnight for an explosion of flavor when baked.
Key Ingredients
Here are the essentials that bring this recipe to life:
- 1 (8 oz) cream cheese
- 1 cup powdered sugar
- 2 tbsp milk
- 1 tbsp vanilla extract
- 2 cups blueberries (fresh or frozen)
- 2 loaves French bread, cubed
- 2 cups milk
- 8 large eggs
- 1 tsp cinnamon
- ½ tsp nutmeg
- 1 lemon (zest + 2 tbsp juice)
Don’t have fresh blueberries? You can easily swap them with other berries like strawberries or blackberries. Likewise, if you prefer a dairy-free option, vegan cream cheese and an alternative milk would work here too!
Step-by-Step Instructions
- In a large mixing bowl, blend cream cheese, powdered sugar, 2 tbsp of milk, and 1 tbsp of vanilla extract until you achieve a smooth consistency.
- Gently fold in 1 cup of blueberries along with 1 tbsp of lemon juice and a touch of lemon zest for that fresh zing.
- Layer half of the cubed French bread in a greased 10×14-inch baking dish.
- Spread the delightful cream cheese mixture evenly over the bread.
- Top with the remaining bread cubes.
- In another bowl, whisk together 2 cups of milk, 8 eggs, 2 tsp vanilla, cinnamon, nutmeg, and the rest of the lemon zest and juice.
- Pour this custard mixture evenly over the layers in your baking dish, ensuring every piece of bread is well-soaked.
- Scatter the remaining blueberries on top for an extra burst of color and flavor.
- Cover with foil and refrigerate overnight (or at least for 4 hours).
- When you’re ready to bake, preheat the oven to 375°F (190°C). Bake covered for 45 minutes, then uncover and bake for an additional 30 minutes until golden brown and set.

Best Ways to Enjoy It
When it’s fresh out of the oven, let it sit for a few minutes to set. Serve warm, dusted with powdered sugar, or drizzle with maple syrup for an indulgent treat. You can also pair it with fresh fruits, whipped cream, or a dollop of yogurt on the side.
How to Store & Freeze
Once cooled, this casserole can be stored in an airtight container in the fridge for up to 3 days. If you want to save some for later, it freezes wonderfully! Slice individual portions and wrap them tightly before placing them in a freezer-safe bag. Thaw in the fridge overnight and reheat in the oven or microwave when you’re ready to indulge again.
Helpful Cooking Tips
- For the best flavor, let the casserole soak overnight. This allows the bread to fully absorb the custard mixture.
- If you’re in a rush, you can let it soak for at least 4 hours, but overnight is truly ideal.
- Butter the dish well to prevent sticking and ensure an easy clean-up.
- Add a pinch of salt to elevate the sweetness from the blueberries and the richness of the cream cheese.
Creative Twists
Feeling adventurous? Here are some fun variations you can try:
- Substitute raspberries or blackberries for the blueberries, or use a mix of berries for a colorful twist.
- Add a sprinkle of chopped walnuts or pecans for an extra crunch.
- For a citrus twist, mix in some orange zest along with the lemon.
- Try a drizzle of honey or agave syrup in place of powdered sugar for a different sweet taste.
Common Questions
How long does it take to prepare?
Prep time is about 20-30 minutes. The overnight soak ensures maximum flavor and minimal stress in the morning!
Can I use stale bread for this recipe?
Absolutely! In fact, using day-old French bread makes the dish custardier. Just make sure it’s not moldy or overly dry.
Is this recipe suitable for freezing?
Yes, you can freeze the prepared dish. Cover it tightly and refrigerate it for up to 2 months, then thaw and reheat as needed.
Can I make it gluten-free?
Sure! Switch the French bread for a gluten-free loaf, and you won’t miss a beat!
There you have it—an irresistible Blueberry Lemon French Toast Casserole Overnight Recipe that’s a stroke of genius for any breakfast or brunch gathering. Enjoy the delightful flavors and easy preparation that this dish brings!
Print
Blueberry Lemon French Toast Casserole Overnight
- Total Time: 105 minutes
- Yield: 8 servings
- Diet: Vegetarian
Description
A delightful overnight French toast casserole filled with blueberries and lemon, perfect for brunch gatherings.
Ingredients
- 1 (8 oz) cream cheese
- 1 cup powdered sugar
- 2 tbsp milk
- 1 tbsp vanilla extract
- 2 cups blueberries (fresh or frozen)
- 2 loaves French bread, cubed
- 2 cups milk
- 8 large eggs
- 1 tsp cinnamon
- ½ tsp nutmeg
- 1 lemon (zest + 2 tbsp juice)
Instructions
- In a large mixing bowl, blend cream cheese, powdered sugar, 2 tbsp of milk, and 1 tbsp of vanilla extract until smooth.
- Gently fold in 1 cup of blueberries along with 1 tbsp of lemon juice and a touch of lemon zest.
- Layer half of the cubed French bread in a greased 10×14-inch baking dish.
- Spread the cream cheese mixture evenly over the bread.
- Top with the remaining bread cubes.
- In another bowl, whisk together 2 cups of milk, 8 eggs, 2 tsp vanilla, cinnamon, nutmeg, and the rest of the lemon zest and juice.
- Pour the custard mixture evenly over the layers in the baking dish, ensuring every piece of bread is well-soaked.
- Scatter the remaining blueberries on top.
- Cover with foil and refrigerate overnight (or at least for 4 hours).
- When ready to bake, preheat the oven to 375°F (190°C). Bake covered for 45 minutes, then uncover and bake for an additional 30 minutes until golden brown and set.
Notes
Letting the casserole soak overnight allows the bread to fully absorb the custard mixture for maximum flavor.
- Prep Time: 30 minutes
- Cook Time: 75 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American