Ingredients
1-1/2 cups shredded cheddar cheese1-1/2 cups shredded part-skim mozzarella cheese2 tablespoons butter1/2 pound sliced fresh mushrooms1 medium sweet red pepper, chopped6 green onions, chopped1-3/4 cups cubed fully cooked ham8 large eggs1-3/4 cups 2% milk1/4 cup all-purpose flour1/4 teaspoon salt1/4 teaspoon pepper
Preparation
Sprinkle cheeses into a greased 13x9-in. baking dish. In a large skillet, heat butter over medium-high heat; saute mushrooms, red pepper and green onions until tender. Stir in ham; spoon over cheese.
In a large bowl, whisk together eggs, milk, flour, salt and pepper; pour over ham mixture. Refrigerate, covered, overnight.
Preheat oven to 350°. Remove casserole from refrigerator while oven heats. Bake, uncovered, until a knife inserted in the center comes out clean, 35-45 minutes. Let stand 5 minutes before serving.