First, pat meat mixture into a 1-inch thick rectangle on counter top. Cut the rectangle into the same number of squares as meatballs in your recipe. Gently roll each square into a ball.
Place shaped meatballs on a rack in a shallow baking pan. Bake at 400 degrees F. until no longer pink (about 20 minutes for 1 1/2 inch meatballs). After baking, drain any fat and let sit for 5-10 minutes before adding to your recipe.