Sorry for the confusion, I meant the tomato seeds. I've still not read any scientific information about tomato seeds in a ripe tomato or a ripe pepper being toxic, the way that green potato skins are toxic.
Per my earlier post/question, I've only read that green potato skins are toxic and/or unhealthy, for humans as well as chickens. I'll start cooking non-green skins prior to giving them to the chicks, just to be safe. I eat cooked potato skins all the time so I think that will work fine.