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Golden Denver omelet egg bake sliced into squares with ham, bell peppers, onion, cheddar, and fresh herbs on top

Breakfast Egg Bake Everyone Will Love for Busy Mornings

Hearty breakfastcasserole · Brunch, meal prep, or family breakfast · Fluffy, cheesy, and easyto make ahead
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Prep Time 15 minutes
Cook Time 44 minutes
Total Time 1 hour 15 minutes
Servings: 8 slices
Course: Breakfast
Cuisine: American
Calories: 320
Ingredients Method Notes

Ingredients
  

  • For the egg bake
  • 12 large eggs.
  • 2 cups diced ham.
  • 1 cup chopped red bell pepper.
  • 1 cup chopped green bell pepper.
  • 1 medium onion finely chopped.
  • 2 cups shredded cheddar cheese.
  • 1 cup milk.
  • Salt to taste.
  • Black pepper to taste.
  • Optional toppings
  • Chopped fresh herbs such as parsley or chives.
  • Sour cream.
  • Equipment
  • 9 x13-inch baking dish.
  • Large mixing bowl.

Method
 

  1. Preheat the oven.
  2. Heat the oven to 350°F and lightly grease a 9x13-inch baking dish.
  3. Whisk the eggs and milk.
  4. In a large bowl, whisk the eggs with the milk, salt, and pepper until the mixture looks pale and airy. The source notes that thorough whisking helps create a fluffier texture.
  5. Add the fillings.
  6. Stir in the diced ham, red bell pepper, green bell pepper, onion, and cheddar cheese until everything is evenly distributed.
  7. Pour into the dish.
  8. Transfer the mixture to the prepared baking dish and spread it out evenly.
  9. Bake until puffed and golden.
  10. Bake for about 45 minutes, until the casserole is set and lightly golden on top. The source advises watching the bake closely since oven temperatures can vary.
  11. Rest before slicing.
  12. Let the casserole cool for 10 to 15 minutes before cutting. This helps the eggs finish setting and makes neat slices easier.
  13. Serve warm.
  14. Cut into squares and top with fresh herbs or a dollop of sour cream if you like.

Notes

Whisk the eggs really well. The source specifically recommends beating them until pale yellow and airy for the fluffiest texture.
A 9x13-inch dish gives the most even bake. The source notes that an 8x8-inch dish can work for a smaller batch, but the baking time may need to change.
Let the casserole rest after it comes out of the oven. That short cooling time helps the slices hold together better and keeps the texture from feeling too loose in the center.
For make-ahead prep, you can whisk together the eggs, milk, salt, and pepper, then fold in the ham, peppers, onion, and cheese up to 24 hours in advance and refrigerate the mixture until baking time.
If the bake ever comes out a little dry, the source suggests serving it with sour cream or salsa for extra moisture and flavor.
Easy Variations
  • Vegetarian version: Skip the ham and use more vegetables such as spinach, mushrooms, or zucchini.
  • Different cheese: Swap cheddar for Monterey Jack, feta, Swiss, or pepper jack.
  • Dairy-free version: Use almond milk, oat milk, or coconut milk in place of regular milk.
  • Spicier bake: Add diced jalapeños or red pepper flakes.