Baguette Ham Overnight Breakfast Casserole

Ingredients (12)

• 1 Tbsp. butter
• 1 pound cooked ham
• 3 green onion
• 12 large eggs
• 1 1/2 cups 1% milk
• 1 cup whipping cream
• 2 tsp. ground mustard
• 1 Tbsp. dried basil
• 1 1/2 tsp. kosher salt
• 1/2 tsp. freshly ground black pepper
• 10 ounce French or sourdough baguette
• 2 cups mixed cheese