Double Cheese Meat Loaf

Ingredients
1 tbsp butter
1 cup chopped onion
6 tablespoons ketchup, divided
2 tablespoons Dijon mustard, divided
1 cup (4 ounces) shredded part-skim mozzarella cheese
1/2 cup Italian-seasoned breadcrumbs
1/4 cup chopped fresh parsley
2 tablespoons grated Parmesan cheese
1 teaspoon dried oregano
1/4 teaspoon black pepper
1 large egg, lightly beaten
3/4 pound lean ground beef
3/4 pound lean ground pork

Preparation
Preheat oven to 375°.

Melt butter in nonstick skillet over medium heat. Add the chopped onion, and sauté for 3 minutes. Combine the onion, 1/4 cup ketchup, 1 tablespoon mustard, mozzarella, and next 6 ingredients (mozzarella through egg) in a large bowl. Crumble ground meats over cheese mixture; stir just until blended.

Form mixture into a loaf and place it in a casserole dish coated with cooking spray. Combine 2 tablespoons ketchup and 1 tablespoon mustard; spread over top of loaf. Bake at 375° for 1 hour or until meat thermometer registers 160°. Let meat loaf stand in pan 10 minutes.

Cut into 12 slices and serve.