My cat is so food motivated he eats absolutely everything. Obviously has a preference for wet food with gravy so I buy a bunch of different flavours in bulk but he's happy to eat the same thing every day. He also loves olives, bread (wholemeal more than white, sourdough has an advantage too. Local bakery bread is where things are really at. Supermarket bread is a mixed bag, he usually ignores it because it's crap), seeds, nuts, potato chips, lentils, hummus, yogurt, and grass.