Overnight Pumpkin French Toast Casserole

This pumpkin French toast casserole soaks overnight, so all you do in the morning is slide it into the oven. The center stays custardy and soft, while the top gets deeply golden and almost crisp, thanks to a pecan streusel that bakes right on top.

It’s my go-to for fall weekends, but it’s simple enough for a weeknight breakfast-for-dinner when you want something that feels special without last-minute fuss.

What Makes This Pumpkin French Toast Casserole So Good

The pumpkin purée and warm spices give ordinary French toast a deeper, cozier flavor. Every bite is soft and moist because the custard soaks all the way through, not just the surface.

I love how hands-off the whole thing is. There’s no standing over a griddle flipping slices, and the casserole bakes into one big, fragrant dish that feeds a crowd (or just your family, with leftovers).

Ingredients

• 1 tbsp unsalted butter: for greasing the dish
• 12 oz challah bread, cubed (about 8 cups): brioche or sourdough also work
• 1 cup pumpkin purée: not pumpkin pie filling
• 4 large eggs
• 1 1/2 cups whole milk: 2% or oat milk works too
• 1/3 cup packed brown sugar: light or dark both fine
• 2 tbsp pure maple syrup: plus more for serving
• 2 tsp vanilla extract
• 1 1/2 tsp ground cinnamon
• 1/2 tsp ground nutmeg
• 1/4 tsp ground ginger
• 1/2 tsp fine sea salt
• For the streusel:
• 4 tbsp unsalted butter, melted
• 1/2 cup all-purpose flour
• 1/2 cup packed brown sugar
• 1/2 cup chopped pecans
• 1/2 tsp ground cinnamon

Swap Things Around

• Use brioche or sourdough: Both soak up the custard well; sourdough adds a subtle tang.
• Make it dairy-free: Swap the milk for oat milk and use a plant-based butter for the streusel.
• Skip the nuts: Leave out the pecans if you need a nut-free version, or replace them with pepitas.
• Add chocolate chips: Fold 1/2 cup semisweet chips into the bread before pouring the custard.
• Use pumpkin pie spice: Replace the cinnamon, nutmeg, and ginger with 2 1/2 teaspoons pumpkin pie spice.

If you love this, try my Apple Cinnamon Baked Oatmeal.

How to Make Overnight Pumpkin French Toast Casserole

Step 1: Whisk the Custard

In a large bowl, whisk together the 1 cup pumpkin purée, 4 eggs, 1 1/2 cups milk, 1/3 cup brown sugar, 2 tbsp maple syrup, 2 tsp vanilla, 1 1/2 tsp cinnamon, 1/2 tsp nutmeg, 1/4 tsp ginger, and 1/2 tsp salt until completely smooth, about 1 minute.

The mixture will look a bit thick at first, but keep whisking and it loosens into a silky, spice-flecked liquid.

Step 2: Soak the Bread

Place the 12 oz cubed challah into a greased 9-by-13-inch baking dish. Pour the custard evenly over the bread and use a large spoon or your hands to gently toss everything together, making sure every piece gets coated. Let the dish sit at room temperature for 15 minutes so the bread can absorb the custard. For an overnight version, cover and refrigerate for at least 8 hours, pressing down on the bread a few times before bed.

As it rests, the bread softens and plumps up, turning the cubes into tender, custard-soaked pillows. If you peek, the mixture will look a little soupy before baking, and that’s exactly what you want.

Step 3: Sprinkle with Pecan Streusel

In a small bowl, mix the 4 tbsp melted butter, 1/2 cup flour, 1/2 cup brown sugar, 1/2 cup pecans, and 1/2 tsp cinnamon with your fingers until the mixture forms pea-sized clumps. This takes about 2 minutes. Scatter the streusel evenly over the soaked bread, covering the whole surface.

The crumble should look uneven, with some larger chunks that will crisp up and smaller bits that melt into the custard, giving you a mix of crunchy and chewy bites.

Step 4: Bake the Casserole

Preheat the oven to 350°F (175°C) with a rack in the middle position. Bake the casserole uncovered for 40 to 45 minutes, until the top is deeply golden and the custard is set in the center. A knife inserted near the middle should come out clean, or an instant-read thermometer will read 190°F (88°C).

The whole kitchen will smell like warm pumpkin and toasted pecans. If the streusel starts browning too fast before the custard is done, tent the dish loosely with foil.

Step 5: Scoop and Serve

Let the casserole rest on the counter for 5 minutes. It will sink a little, which is normal. Scoop generous portions onto plates and drizzle with extra maple syrup while it’s still warm.

A Few Notes Before You Start

• Day-old or slightly stale bread drinks up the custard better than super-fresh bread and holds its structure during baking.
• If you assembled the casserole the night before, take it straight from the fridge to the oven and add 5 to 10 minutes to the bake time since the dish is cold.
• You can prep the streusel a day ahead and store it in a sealed container in the fridge; sprinkle it on just before baking.
• A glass baking dish makes it easy to peek at the bottom and sides to check that the custard is fully set so you avoid a soggy middle.

Storing Leftovers

• Refrigerate: Keep any leftovers in an airtight container for up to 4 days.
• Reheating: Warm individual servings in the microwave, or reheat the whole casserole in a 300°F oven, covered, until hot all the way through.

What Goes Well with This Casserole

Crispy bacon or a few pork sausage links give you that sweet-savory contrast that makes breakfast feel complete. A mound of fresh berries or a spoonful of thick yogurt on the side adds brightness and cuts the richness just enough.

Frequently Asked Questions

My casserole turned out dry. What went wrong?

You may have overbaked it or used bread that was too dense. Pull it the moment the center no longer jiggles, and stick with soft, enriched loaves like challah or brioche.

Can I use fresh pumpkin instead of canned?

Yes, but cook and purée the fresh pumpkin until it’s very smooth and similar in consistency to canned. Homemade purée sometimes carries more water, so reduce the milk by 2 tablespoons to compensate.

Why didn’t my streusel get crunchy?

The topping needs enough butter to clump. If your mixture looked sandy instead of crumbly, add another tablespoon of melted butter and toss again before sprinkling.

Pumpkin French Toast Casserole Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 45 minutes mins

Total Time 1 hour hr

Servings: 8 servings

Calories: 380

Ingredients Method Notes

Ingredients

  

• 1 tbsp unsalted butter
• 12 oz challah bread, cubed (about 8 cups)
• 1 cup pumpkin purée
• 4 large eggs
• 1 1/2 cups whole milk
• 1/3 cup packed brown sugar
• 2 tbsp pure maple syrup, plus more for serving
• 2 tsp vanilla extract
• 1 1/2 tsp ground cinnamon
• 1/2 tsp ground nutmeg
• 1/4 tsp ground ginger
• 1/2 tsp fine sea salt
• 4 tbsp unsalted butter, melted
• 1/2 cup all-purpose flour
• 1/2 cup packed brown sugar
• 1/2 cup chopped pecans
• 1/2 tsp ground cinnamon

Method

 

1. Whisk the pumpkin purée, eggs, milk, 1/3 cup brown sugar, maple syrup, vanilla, the individual spices, and salt until smooth, about 1 minute.
2. Place the bread in a greased 9×13 dish, pour the custard over, and toss to coat. Let sit at room temperature 15 minutes, or cover and refrigerate overnight, pressing the bread down a few times to help it absorb.
3. Mix the melted butter, flour, 1/2 cup brown sugar, pecans, and 1/2 tsp cinnamon until clumpy, then scatter evenly over the soaked bread.
4. Bake at 350°F (175°C) for 40 to 45 minutes, until deeply golden and the center is set. Tent with foil if the topping browns too fast.
5. Let the casserole rest 5 minutes, then scoop onto plates and drizzle with extra maple syrup.

Notes

If you bake the casserole straight from the refrigerator, add 5 to 10 minutes to the bake time. The center should feel firm with no liquid jiggle, and an instant-read thermometer will read 190°F (88°C) when it’s done.