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Easy Cheesy Denver Omelet Casserole Recipe for a Hearty Breakfast

Denver Omelet Casserole - featured image

A quick and easy Denver omelet casserole that combines eggs, ham, bell peppers, onions, and cheddar cheese baked to a golden, fluffy perfection. Perfect for busy mornings, potlucks, or family breakfasts.

Ingredients

Scale
  • 12 large eggs, room temperature
  • 1 cup (240 ml) whole or 2% milk
  • 1 ½ cups (225 g) cooked ham, diced
  • 1 cup (150 g) green bell pepper, diced
  • ½ cup (75 g) onion, finely chopped
  • 2 cups (200 g) shredded cheddar cheese
  • Salt, to taste (about 1 teaspoon)
  • Black pepper, to taste (about ½ teaspoon)
  • ½ teaspoon garlic powder
  • Butter or non-stick spray, for greasing the baking dish
  • Optional: ½ cup (75 g) diced tomatoes

Instructions

  1. Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking dish with butter or non-stick spray.
  2. Dice the green bell pepper, finely chop the onion, and cut the cooked ham into small pieces.
  3. In a large mixing bowl, whisk together 12 large eggs and 1 cup (240 ml) milk until smooth and slightly frothy.
  4. Stir in ½ teaspoon garlic powder, salt, and black pepper to taste.
  5. Fold in the diced ham, bell pepper, onions, and 1 ½ cups (150 g) shredded cheddar cheese, reserving ½ cup (50 g) cheese for topping.
  6. Pour the egg mixture evenly into the prepared baking dish and sprinkle the reserved cheese over the top.
  7. Bake for 35-40 minutes, or until the eggs are set and the top is golden brown. A knife inserted in the center should come out clean.
  8. Let the casserole cool for about 5 minutes before slicing and serving.

Notes

Use room temperature eggs and milk for even baking. Pre-cook veggies if you prefer softer texture. Check doneness starting at 30 minutes to avoid overbaking. This casserole can be assembled the night before and baked fresh in the morning with a few extra minutes added to baking time. For dairy-free, substitute milk and cheese with plant-based alternatives.

Nutrition

Keywords: Denver omelet casserole, cheesy breakfast casserole, easy breakfast, brunch recipe, ham and cheese casserole, make ahead breakfast