1. Combine ground beef, stuffing mix, milk, egg, Dijon mustard, BBQ sauce, garlic, Italian seasoning, salt, and pepper. Mix the ingredients until well incorporated, being careful not to overmix.
2. Spread the meat mixture evenly in the loaf pan, pressing it down firmly. Bake the meatloaf in the oven at 350°F (175°C) for approximately 45-50 minutes.