You could just give it to them raw then you don’t have to deal with the smell
Also more nutrients that way haha
But I’m glad you are at least giving them whole now, that’s an improvement
You probably could cook them whole. Maybe in the oven or on a grill? I don’t think it would stink the house up. Some people cook and eat the organs for themselves and I think they do it in the house? So it can’t be too bad haha
But maybe you could do it outside on a grill or something? That way it wouldn’t stink up the house and you could just cook them lightly too and not overdo it aha