Ham and Cheese Overnight Breakfast Casserole

Ingredients (8)

• 1 tablespoon butter
• 1 24 ounce loaf sliced white bread
• 2 pounds no-water added ham finely ground in a food processor or by your butcher
• 1 pound medium cheddar cheese grated
• 8 eggs
• 2 cups milk
• 1 tablespoon dry mustard
• 1 tablespoon fresh chopped parsley