Easy Cheesy Everything Bagel Breakfast Casserole
A quick and easy breakfast casserole featuring everything bagels, eggs, and sharp cheddar cheese, perfect for brunch and crowd-pleasing gatherings.
- Prep Time: 15 minutes
- Cook Time: 45-50 minutes
- Total Time: 1 hour 5 minutes
- Yield: 8 servings 1x
- Category: Breakfast, Brunch
- Cuisine: American
Ingredients
Scale
- 4 medium-sized everything bagels, cut into 1-inch cubes (day-old or frozen)
- 8 large eggs, room temperature
- 2 cups (480 ml) whole milk or 2% milk
- 2 cups (about 200 g) shredded sharp cheddar cheese
- 2 tablespoons everything bagel seasoning
- ½ cup (120 ml) sour cream
- 3 stalks green onions, thinly sliced
- Salt and black pepper to taste
- Butter or cooking spray for greasing the baking dish
Instructions
- Preheat oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with butter or cooking spray.
- Cube the everything bagels into roughly 1-inch pieces and evenly spread them in the baking dish.
- In a large bowl, whisk together the eggs, milk, and sour cream until smooth and slightly frothy.
- Stir in 1 tablespoon of everything bagel seasoning, salt, and pepper to taste.
- Sprinkle 1 cup of shredded cheddar cheese over the bagel cubes in the dish.
- Pour the custard evenly over the bagels and cheese, pressing the bagels gently to submerge them slightly.
- Top with sliced green onions, the remaining 1 cup of shredded cheddar cheese, and the remaining tablespoon of everything bagel seasoning.
- Bake uncovered for 45-50 minutes until the casserole puffs up and the top is golden brown and slightly crispy. A toothpick inserted in the center should come out clean.
- Let the casserole rest for 10 minutes before serving to set and meld flavors.
Notes
Use day-old or slightly stale bagels to absorb the custard better and avoid sogginess. Avoid over-salting due to cheese and seasoning salt content. Let the casserole rest after baking for clean slices. If top browns too fast, cover loosely with foil halfway through baking. Can be assembled the night before and refrigerated.
Nutrition
- Serving Size: 1 slice (1/8th of ca
- Calories: 375
- Sugar: 3
- Sodium: 550
- Fat: 23.5
- Saturated Fat: 12
- Carbohydrates: 22.5
- Fiber: 2
- Protein: 20
Keywords: breakfast casserole, everything bagel, cheesy casserole, brunch recipe, easy breakfast, crowd-pleaser