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Easy Breakfast Casserole Recipe

5 from 67 reviews

This Easy Breakfast Casserole is a hearty and flavorful morning dish perfect for busy weekdays or leisurely weekends. Combining savory ham, sautéed vegetables, fluffy eggs, and melted cheddar cheese, this casserole offers a satisfying and comforting start to your day. It’s simple to prepare, baked to golden perfection, and can be customized with your favorite ingredients.

Ingredients

Scale

Protein

  • 1 lb Ham (diced; or sausage, or more of the veggies below)
  • 12 large Eggs

Vegetables

  • 1 medium Yellow onion (diced)
  • 6 cloves Garlic (minced)
  • 2 large Bell peppers (diced; red and green recommended)
  • 1 1/2 cups White mushrooms (thinly sliced)
  • 2 tbsp Green onions (chopped; optional for garnish or stir-in)

Dairy

  • 1/2 cup Half and half (or any milk of your choice)
  • 2 cups Cheddar cheese (shredded and divided; or any cheese of choice)

Other

  • 3 tbsp Olive oil (divided into 1 tbsp and 2 tbsp)
  • 1/4 tsp Sea salt
  • 1/4 tsp Black pepper

Instructions

  1. Preheat and Prepare: Preheat your oven to 375°F (191°C) and grease the bottom of a large baking dish to prevent sticking and ensure easy serving.
  2. Cook the Ham: Heat 1 tablespoon of olive oil in a large skillet over medium heat. Add the diced ham and cook for 5-6 minutes until browned and fragrant. Remove the ham from the skillet and set aside.
  3. Saute Onions: Add the remaining 2 tablespoons of olive oil to the skillet and heat until shimmering. Add the diced onions and sauté for 3-5 minutes until they become translucent and soft.
  4. Add Vegetables: Stir in the minced garlic, diced bell peppers, and sliced mushrooms. Cook for an additional 6-8 minutes until the vegetables soften and release their flavors.
  5. Combine Ham and Veggies: Remove the skillet from heat and mix the cooked ham back into the vegetable mixture. Optionally, stir in chopped green onions for extra flavor. Transfer this mixture evenly into the prepared baking dish.
  6. Prepare Egg Mixture: In a large bowl, whisk together the eggs, half and half (or your preferred milk), 1 cup of shredded cheddar cheese, sea salt, and black pepper until well combined.
  7. Assemble Casserole: Pour the egg mixture over the ham and vegetable layer in the baking dish. Stir gently to mix all ingredients evenly. Sprinkle the remaining 1 cup of cheddar cheese on top.
  8. Bake: Place the casserole in the preheated oven and bake for about 30 minutes, or until the eggs are set but still soft and the edges turn golden brown.
  9. Garnish and Serve: Remove the casserole from the oven and garnish with additional chopped green onions if desired. Serve warm for a filling breakfast.

Notes

  • You can substitute ham with cooked sausage or increase the quantity of vegetables for a vegetarian version.
  • Feel free to use any variety of cheese you prefer for different flavors.
  • Leftovers can be refrigerated and reheated for a quick breakfast on the go.
  • For a dairy-free option, use plant-based milk and cheese alternatives.

Keywords: breakfast casserole, easy breakfast, ham casserole, baked eggs, cheesy breakfast, vegetable casserole