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Served portion of Ham and Cheese Breakfast Casserole on a plate

Ham and Cheese Breakfast Casserole


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  • Author: Lorena Kensley
  • Total Time: 50 minutes

Description

This easy Ham and Cheese Breakfast Casserole is a cozy, make-ahead breakfast that’s perfect for busy mornings or weekend brunch. Fluffy eggs, melted cheese, and savory diced ham come together in a golden, baked dish that’s hearty, family-friendly, and ready in under an hour. It’s simple to prep, easy to customize, and reheats beautifully for meal prep or leftovers.


Ingredients

  • 3 tablespoons butter (plus more for greasing the dish)
  • 1 teaspoon butter (for sautéing vegetables)
  • ½ small yellow onion, diced small
  • ½ medium bell pepper, any color, diced small
  • 1 cup all-purpose flour (or gluten-free flour blend if needed)
  • 1 ½ teaspoons baking powder
  • ½ teaspoon fine salt
  • 1 cup milk, divided
  • 6 large eggs, divided
  • 1 cup shredded cheddar cheese, divided
  • 810 ounces diced ham
  • Freshly ground black pepper, to taste


Instructions

  1. Preheat the Oven: Set the oven to 375°F. Grease the bottom and sides of a 2½-quart casserole dish (or 9×9-inch baking dish) with butter.
  2. Sauté the Vegetables: In a small skillet, melt 1 teaspoon of butter over medium heat. Add the diced onion and bell pepper, season with salt and pepper, and sauté for about 5 minutes until tender. Set aside.
  3. Prepare the Batter Base: In a medium bowl, whisk together the flour, baking powder, ½ teaspoon salt, ½ cup milk, 1 egg, and 2 tablespoons melted butter. Mix until smooth, with only a few small lumps.
  4. Layer the Batter and Cheese: Pour the batter evenly into the greased baking dish. Spread it gently with a spatula, then sprinkle ¾ cup of shredded cheese on top.
  5. Add the Egg and Ham Mixture: In the same bowl, whisk the remaining 5 eggs, ½ cup milk, and 1 tablespoon melted butter. Stir in the sautéed vegetables and diced ham. Pour this mixture over the batter layer and cheese.
  6. Top and Bake: Sprinkle the remaining ¼ cup of cheese evenly over the top. Bake for 33–35 minutes or until a toothpick inserted in the center comes out clean.
  7. Cool and Serve: Let the casserole cool for 5 minutes before slicing. Serve warm and enjoy.

Notes

  1. Storage: Refrigerate leftovers in airtight containers for up to 4 days or freeze for up to 2 months.
  2. Make Ahead Tip: Assemble the casserole the night before, refrigerate, and bake fresh in the morning.
  3. Variations: Add cooked bacon, sausage, or vegetables like spinach or mushrooms for extra flavor.
  4. Gluten-Free Option: Substitute the all-purpose flour with a gluten-free 1:1 baking blend.
  5. Cheese Options: Try swapping cheddar with Swiss, Monterey Jack, or pepper jack for a different flavor.
  6. Serving Suggestion: Pair with fruit salad, hash browns, or toast for a complete breakfast.

  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Cuisine: American