Easy Cheesy Brunch Casserole

• 4 slices white bread
• 1 medium onion, chopped
• 1 cup sliced fresh mushrooms
• 2 tablespoons butter or 2 tablespoons margarine, melted
• 1 cup chopped cooked ham
• 1 cup shredded cheddar cheese
• 1 cup shredded swiss cheese
• 1 tablespoon all-purpose flour
• 1 14 cups milk
• 4 large eggs, beaten
• 1 tablespoon prepared mustard
• 12 teaspoon garlic salt
• 14 teaspoon pepper

1. Place bread slices in bottom of a lightly greased 8-inch square baking dish; set aside.
2. Saute onion and mushrooms in butter until tender; spoon evenly over bread.
3. Top with ham.
4. Combine cheeses and flour; sprinkle over ham.
5. Combine milk and next 4 ingredients; pour over cheese.
6. Cover and chill 8 hours.
7. Remove from refrigerator, and let stand at room temperature 30 minutes.
8. Bake at 375 degrees for 35 minutes or until set.
9. Let stand 10 minutes before serving.

white bread, onion, mushrooms, butter, ham, cheddar cheese, swiss cheese, flour, milk, eggs, mustard, garlic salt, pepper

Taken from www.food.com/recipe/easy-cheesy-brunch-casserole-28561 (may not work)