I think that the FDA is more concerned with food safety and nutritional labeling than defining what's in tomato sauce, or guacamole, for that matter. Of course, something like tomato sauce should still contain tomatoes, correct? Now chocolate chip cookies is a far wider field. Are they oatmeal, do they look like a brownie? You'd have a far harder time making this kind of argument with these, unless, of course, they didn't have chocolate chips in them.