Preheat the oven to 375° Grease a 12-cup muffin pan with cooking spray. Gently mix the ground chicken with half the Cheddar, the breadcrumbs, apple, egg, green onions, garlic, milk, Parmesan, Dijon, Worcestershire sauce, thyme, pepper, salt and allspice. Divide evenly between 8 of the muffin cups.
Spoon some apple butter over each portion and sprinkle with the remaining Cheddar. Bake for 20 to 25 minutes or until an instant read thermometer inserted in the center registers 160°
Use your favourite Cheddar for this recipe. Bring these mini meatloaves to a picnic and serve with cornbread.