Dessert

Everything Bagel Breakfast Casserole Recipe

Name: Everything Bagel Breakfast Casserole Recipe
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 4 Organic Eggs; 1 cup Whole Milk; 3/4 cup Cheddar Cheese, shredded; 1/2 cup Mozzarella Cheese, shredded; 1/2 teaspoon Stone Ground Mustard; 1/4 teaspoon Salt; 1 pinch Ground Black Pepper; 4 Everything Bagels, cut into pieces; 10 Breakfast Sausage Links, cooked and chopped; 4 ounces Cream Cheese, cut into chunks; 1 Tomato, sliced; 1 Avocado, sliced

ByCleo Brixton December 16, 2025December 16, 2025

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Introduction

This Everything Bagel Breakfast Casserole is a hearty and flavorful dish that combines the classic flavors of an everything bagel with savory sausage and creamy cheeses. Perfect for a cozy morning or brunch gathering, it’s easy to prepare and sure to impress.

The image shows a square piece of baked casserole on a white square plate, placed on a white marbled surface. The casserole has a base layer of baked egg that is yellow and fluffy, topped with browned sausage pieces that have a rough texture. On top of the sausage layer, there are small cubes of bright green avocado and red tomato, scattered evenly. The casserole also has melted white cheese visible under the toppings, giving a slightly creamy texture. To the left, more casserole is seen in a white rectangular baking dish with a handle. Nearby is a white cup with tea steeping inside, and on the upper right is a white egg tray holding four brown eggs. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

4 organic eggs
4 everything bagels
10 breakfast sausage links
1 cup whole milk
3/4 cup cheddar cheese
1/2 cup mozzarella cheese
1/2 teaspoon stone ground mustard
1/4 teaspoon salt
1 pinch ground black pepper
4 ounces cream cheese
1 tomato
1 avocado

Instructions

Step 1: Preheat the oven to 375 degrees F (190 degrees C).
Step 2: Lightly coat an 8×8-inch or similar size casserole dish with baking spray.
Step 3: Scatter the pieces of everything bagel across the bottom of the prepared dish.
Step 4: Evenly distribute the breakfast sausage links and dollops of cream cheese over the bagel pieces.
Step 5: In a bowl, whisk together the eggs, whole milk, cheddar cheese, mozzarella cheese, stone ground mustard, salt, and black pepper. Pour this mixture evenly over the bagel and sausage layer.
Step 6: Bake for 40-45 minutes, or until the center is set and the edges are golden brown.
Step 7: Remove the casserole from the oven and top with sliced tomato and avocado.
Step 8: Let the casserole cool for 10 minutes before slicing and serving.

Tips & Variations

Use gluten-free bagels for a gluten-free version.
Swap breakfast sausage with cooked bacon or ham for a different flavor.
Add chopped green onions or fresh herbs like chives for a fresh finish.
For extra creaminess, stir in a bit of sour cream or Greek yogurt before baking.

Storage

Store any leftovers covered in the refrigerator for up to 3 days. To reheat, place individual slices in the oven at 350 degrees F (175 degrees C) for 10-15 minutes until warmed through. Avoid microwaving to maintain a crispy texture.

How to Serve

The image shows a piece of breakfast casserole on a white square plate placed on a white marbled surface. The casserole has three visible layers: a golden-brown baked top with browned bread pieces and melted cheese, a creamy egg layer beneath it, and some bits of sausage or meat mixed inside. On top, there are diced bright green avocado chunks and red tomato pieces scattered, with black and white sesame seeds sprinkled for texture. The main baking dish holding the casserole is white with a handle, showing the rest of the casserole with similar toppings. Nearby, there is a white cup with tea and a tea bag inside and a white egg carton holding three brown eggs. A silver fork rests near the plate. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I prepare this casserole the night before?

Yes, you can assemble the casserole the night before, cover it tightly, and refrigerate. Bake it the following morning, adding a few extra minutes to the baking time if needed.