Combine all ingredients except for ketchup/barbecue sauce in a large bowl.
Mix well- for best results, use hands.
Divide the mixture into eight parts and form them into loaf shapes.
If not cooking right away, follow directions below to freeze/store them*
Place loaves in a buttered baking dish and spread ketchup or barbecue sauce on top, if desired. Bake at 400 degrees for 25 minutes.
This recipe is for a bulk batch of mini meatloaves. You can cut it in half, if you want to!* Make-ahead / freezer directions: After all the loaves have been formed, wrap the ones you don't want to cook right away like burritos in plastic wrap. They can be kept in the fridge for a few days until you are ready to cook, or freezer for up to 6 months. Before cooking, make sure you defrost in the fridge for at least 24 hours to fully unfreeze the meat, otherwise you risk overcooking the outside and undercooking the inside.