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Overnight Baked Banana French Toast Casserole Recipe

4.5 from 104 reviews

This Overnight Baked Banana French Toast Casserole is a comforting and delicious breakfast dish perfect for busy mornings. Combining hearty sourdough or French bread with ripe bananas and a rich custard mixture, it’s soaked overnight and baked to golden perfection. A buttery streusel topping adds an irresistible crunch, making it a crowd-pleasing treat served warm with maple syrup or your favorite toppings.

Ingredients

Scale

Main Ingredients

  • 1 lb sourdough or French bread, cut into chunks
  • 8 large eggs
  • 2 cups milk (whole or 2%)
  • 1/2 cup heavy whipping cream
  • 1/2 cup sugar
  • 1/4 cup light brown sugar
  • 67 medium ripe bananas, chopped

Streusel Topping

  • 3/4 cup all-purpose flour
  • 3/4 cup firmly packed brown sugar
  • 1/2 cup salted butter

Instructions

  1. Prepare the Baking Dish: Grease a 9×13 inch casserole dish thoroughly to prevent sticking during baking.
  2. Combine Bread and Bananas: In a large bowl, mix the sourdough or French bread chunks with the chopped ripe bananas, ensuring an even distribution.
  3. Make the Egg Mixture: In a separate bowl, whisk together the eggs, milk, heavy cream, sugar, brown sugar, vanilla extract, and cinnamon until smooth and well combined.
  4. Soak the Bread and Bananas: Pour the egg mixture over the bread and banana mixture. Gently stir to coat all the bread chunks and bananas evenly with the custard.
  5. Refrigerate Overnight: Transfer the combined mixture into the prepared casserole dish, cover it tightly, and refrigerate overnight to allow the bread to absorb the custard.
  6. Preheat the Oven: When ready to bake, preheat your oven to 350°F (176°C).
  7. Bake the Casserole: Remove the casserole from the refrigerator and bake uncovered for approximately 35-40 minutes, or until the top is golden brown and set.
  8. Prepare the Streusel Topping: While the casserole bakes, combine the flour, brown sugar, and salted butter in a bowl. Crumble and mix until it forms a coarse streusel texture.
  9. Add Streusel and Finish Baking: Sprinkle the streusel topping evenly over the casserole during the last 5 minutes of baking and continue baking until the topping is golden and crisp.
  10. Serve Warm: Remove from oven and serve the casserole warm. Pair with maple syrup or any preferred toppings to enhance flavor.

Notes

  • Use day-old or slightly stale bread for best absorption of the custard mixture.
  • Bananas should be ripe but not overly mushy to maintain some texture.
  • You can substitute milk with any plant-based milk for a dairy-free version but adjust cream accordingly.
  • Prep the night before to save time in the morning; the casserole tastes even better after soaking overnight.
  • Leftovers can be refrigerated and reheated in the oven or microwave.
  • Optional toppings include chopped nuts, whipped cream, or fresh berries for added flavor and texture.

Keywords: banana French toast casserole, overnight breakfast casserole, baked French toast, banana breakfast bake, brunch casserole