Preheat the oven to 350°F (175°C) and lightly coat a 12-cup muffin tin with non-stick cooking spray.

Prepare the meat mixture: In a large mixing bowl, combine the ground beef or turkey, stuffing mix, water, garlic powder, onion powder, Worcestershire sauce, salt, and pepper. Combine the ingredients gently with your hands or a wooden spoon, taking care not to overmix so the meatloaves stay soft and juicy. If the mixture feels too dry, add a little more water.

Fill the muffin tin: Divide the meat mixture evenly among the 12 muffin cups, pressing lightly to form individual meatloaves.

Make the sauce topping: In a small bowl, whisk together the ketchup, BBQ sauce, honey mustard, and brown sugar until smooth.

Top the meatloaves: Spoon about 1 tablespoon of the sauce mixture over each mini meatloaf.

Bake: Place in the oven and bake for 25 minutes, or until the meatloaves are fully cooked (check with a meat thermometer: cook beef to 160°F and turkey to 165°F).

Add cheese (optional): If using shredded cheese, remove the meatloaves after 20 minutes, sprinkle cheese on top, and return to the oven for an additional 5 minutes to melt.

Serve: Remove from the pan, top with crispy onion strings if desired, and serve hot.