Easy Overnight Everything Bagel Breakfast Casserole
This overnight everything bagel breakfast casserole is the perfect dish for slow, cozy mornings when you want something hearty but don’t want to spend your whole morning in the kitchen. You assemble it the night before using gluten free bagel cubes, an easy egg mixture, bacon, veggies, and cheese, then bake it until beautifully golden brown while the coffee brews. It’s a warm, savory bagel breakfast casserole recipe the whole family will love.
Equipment
- 9x13 baking dish
Ingredients
- 4 gluten-free everything bagels cut into 1-inch bagel cubes
- 8 large eggs
- 1 cup milk of choice
- 1 cup cottage cheese
- 1 cup crumbled feta cheese
- 4 slices turkey bacon cooked and crumbled, omit for vegetarian option
- 4 scallions thinly sliced (plus extra for garnish)
- 1 tablespoon everything bagel seasoning
- ½ teaspoon kosher salt
- ½ teaspoon black pepper
- Cooking spray for greasing the baking dish
Optional Add Ins
- 4 ounces cream cheese cut into small chunks
- 1 cup shredded cheddar cheese gruyere cheese, or swiss cheese
- ½ cup red onion sautéed
- ½ cup red bell pepper sautéed
Instructions
- Prepare the baking dish. Coat your baking dish with cooking spray and preheat oven to 350° Fahrenheit if baking right away.
- Add the bagels. Add the bagel cubes to the dish, spreading them into an even layer.
- Whisk the egg mixture. In a large bowl, whisk together the eggs, milk, cottage cheese, feta crumbles, scallions, everything bagel seasoning, kosher salt, and black pepper until smooth.
- Pour over the casserole. Slowly pour the egg mixture over the bagel cubes, gently pressing down so everything begins to soak.
- Add optional toppings. If using bacon, additional cheese, red onion, spinach or bell pepper, sprinkle them on top now.
- Refrigerate overnight. Cover and refrigerate for at least 4 hours or overnight if you're making this ahead of time.
- Bring to room temperature. Let the casserole sit at room temperature for 20 to 30 minutes while you preheat the oven to 350°F.
- Bake. Bake for 40 to 50 minutes or until set and golden brown on top.
- Finish & serve. Garnish with extra scallions and serve warm.
Notes
Expert Tips & Tricks
- Cut the bagels into uniform cubes so the egg mixture absorbs evenly.
- Add chunks of cream cheese for pockets of creamy texture.
- Add sautéed red onion or red bell pepper for more depth and color.
- Use cheddar cheese, swiss cheese, or gruyere cheese for a richer, more traditional casserole.
- If the top browns too quickly, tent with foil.
Storage & Reheating
- Refrigerate: Store leftovers in an airtight container for up to 4 days.
- Reheat: Warm slices in the microwave or in a 325°F oven until heated through.
- Freeze: Freeze individual portions for up to 2 months.
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