Preheat your oven to 350°F (175°C). Lightly grease your skull-shaped mini loaf pans or silicone molds with cooking spray for easy release after baking.
In a mixing bowl, combine ground beef and ground turkey. Add the bread crumbs soaked in milk, grated Parmesan cheese, ketchup, and egg. Mix gently but thoroughly until evenly combined.
Sprinkle garlic powder, onion powder, salt, black pepper, paprika, and chopped parsley into the meat mixture. Mix again until spices and herbs are fully incorporated.
Divide the meat mixture evenly among the skull-shaped pans or molds. Press firmly but gently into shape, smoothing the surface and defining details if possible.
If using turkey bacon, wrap each mini meatloaf with a strip before placing them onto a baking sheet or pan.
Bake the mini meatloaves for 35-40 minutes or until the internal temperature reaches 160°F (71°C). The turkey bacon should be crispy and browned if used.
Remove from oven and let the mini meatloaves rest for 5 minutes before carefully removing from the pans. This helps keep them juicy and easier to handle.