Gosh, I don't know about cottage cheese. But do you have any people tuna packed in water? My cats love the water from it. Maybe you could drain the tuna and add a few spoonfuls of real water to it and see if he will lap it up. It has some salt in it so it might make him thirsty also. Anything is worth a try. 'course like Freckles said if he stil is a cone head he may be having trouble drinking. Prayers still continuing here.