Question: how long does it take for a meatloaf to cook?
Answer: Place meat mixture on prepared baking sheet, and form into a loaf about 9 inches long and 4 to 5 inches wide. Bake, brushing twice with remaining 1/4 cup ketchup during baking, until an instant-read thermometer registers 160 degrees, 45 to 55 minutes. Let meatloaf rest 10 minutes before slicing and serving.