Preheat the oven to 375°F. Spritz a baking dish with nonstick baking spray and set aside.
Place the ground chicken in a large bowl. Add the egg, parmesan cheese, panko breadcrumbs, onion and garlic on top of the meat. Season with parsley, Italian seasoning, salt and pepper.
Use your hands to mix the ingredients together until combined. This might take a few minutes and effort since you want to make sure that the ingredients are well-dispersed in the meat.
Place the meat mixture into the prepared baking dish and form into a loaf. Mine was 6 ½” (L) x 3 ¾ “ (W) x 1 ¼” (H). The taller your meatloaf is, the longer it will take to bake.
Pour the tomato sauce on top of the meatloaf, and sprinkle additional cheese on it.
Bake for 55-60 minutes, or until the meatloaf is cooked through. The meatloaf’s internal temperature should reach 165°F at the thickest spot.
Once out of the oven, let rest for 5-10 minutes before slicing and serving with your favorite sides.
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