I found this recipe in 5-Ingredient Family Favorites. I tweaked it a bit to the taste of our family; we have one child who doesn't enjoy tomato based sauces and I have acid reflux and can't eat tomato based sauces.
1 lb. ground beef
16 oz pkg stuffing mix
1 c water
1 t italian seasoning
1 c tomato-basil pasta sauce
3/4 c shredded mozzarella cheese
Mix together beef, stuffing mix, water and seasoning until well blended. Spray a muffin tin with non-stick vegetable spray. Press mixture evenly into 12 muffin cups. Make a small well in the center of each mini loaf; spoon some sauce into each well. Bake, uncovered, at 375ยบ for about 30 minutes or until cooked through. Sprinkle with cheese and bake for 5 to 7 minutes more until cheese is melted. Makes 12 mini meatloaves.
I used Pepperidge Farm Stuffing Mix in the 12-oz size. I only used about two cups of the stuffing mix. Also, I subbed shredded parmesan for the mozzarella because it melts differently. I did not add the pasta sauce for the reasons previously mentioned. It was yummy but could have used a bit more flavor/seasoning. I will be making this again and adding a few more tweaks to it. Our littlest lovebug really enjoyed the mini meatloaves!