Unless it is a vegetarian complete food it contains meat anyway! Check the contents, most are well balanced and offer a better diet than home made foods.
Apart from tiny puppies who have a variety of foods, mine have always been reared and fed on dry complete food fed adlib, although they do get any leftovers from my meals mixed in if there are any. Mine only get titbits when training or if I leave them for a time, either a couple of markies or a tripe stick. They have knuckle bones every so often which they bring out and chew on when they feel like it.