Just put the food on the floor and clean up after. Meanwhile, put his bowl on the other side of the room and put some high value food in it (sliced hot dogs). Don't rattle the bowl or plead with the dog, if he doesn't eat it that day, clean the bowl and put more hot dogs in the next day. I'm thinking he might hold out a couple days. Once he eats the hot dog slices, keep on doing the same thing but add a bit of his regular food day by day.