Although many meatloaf recipes use just beef, you can add veal and pork for a more tender, juicier loaf. Use an ample amount of breadcrumbs, too — not for frugality’s sake, but to give the meatloaf its distinctive texture and prevent it from becoming too dense. To supplement your meatloaf, add finely chopped vegetables, which will lighten the texture and provide more flavor; try a combination of garlic, onions, carrots, celery, and parsley. Many recipes also call for ketchup, which lends a sweet and tangy taste to the finished meatloaf, while giving the meat a slightly rosy hue.