From National Cattlemen’s Beef Association | BeefItsWhatsForDinner.com Ground Beef Insert an instant-read thermometer into the center or thickest part of a meatloaf or meatball, or horizontally from the side into the center for patties. All cooking times in this brochure are for fresh or thoroughly thawed Ground Beef. Ground Beef (patties, meatloaves, meatballs) should be…