Bitsy's Meatloaf - VeryVera

Ingredients

• 1 1/2 lb ground beef (80/20 ground chuck recommended)
• 1/4 lb hot pork sausage
• 1 c panko bread crumbs
• 1 large egg
• 1 1/2 tsp. salt
• 1/4 tsp. ground black pepper
• 1 medium Vidalia onion, chopped
• 1/2 c marinara sauce
• 1 tbsp. Worcestershire sauce
• 2 tbsp. yellow mustard
• 2 tbsp. dark brown sugar
• 2 tbsp. white vinegar