Herbed Shells & Cheese Bake

All I have to say is mmmmmm. Found this hidden away in an old recipe book of mine so I don't know where it came from but it is delish!

• Ready In: 20 mins
• Serves: 4-6

Ingredients

• 1 (12 ounce) package Velveeta shells and cheese dinner
• 1⁄2 cup half-and-half
• 1⁄4 teaspoon onion powder
• 1  cup  shredded cheddar cheese, divided
• 4  slices  white bread
• 1⁄4 cup  grated parmesan cheese
• 1  tablespoon dried parsley flakes
• 1⁄4 cup butter

Directions

1. Cook shells and cheese dinner according to basic package directions.
2. Stir half-and-half, 1/2 cup shredded cheese, and onion powder into shell macaroni mixture. Pour pasta mixture into an 8-inch square baking dish.
3. Remove crusts from bread with a serrated knife. Process bread slices in a food processor or blender until finely ground. Toss together breadcrumbs, melted butter, Parmesan cheese, and parsley.
4. Sprinkle shell macaroni with remaining 1/2 cup cheese and breadcrumb mixture.
5. Bake at 400 for 15 minutes or until pasta mixture is thoroughly heated. Let stand 5 minutes before serving.