This overnight pumpkin French toast bake is a stress-free, make-ahead breakfast that tastes like autumn. Assemble it in 15 minutes the night before, then bake in the morning for a perfectly tender, custard-like texture with a crunchy streusel topping.
For best texture, use day-old brioche or challah and let soak overnight. If streusel browns too quickly, tent with foil for last 15 minutes. Let rest 10 minutes after baking for clean slices. Leftovers keep 3 days in fridge or freeze up to 3 months.
Keywords: pumpkin French toast bake, overnight French toast, pumpkin breakfast casserole, fall breakfast, make-ahead brunch