My child must be confused...

I thought I have taught him how to eat well....apparently not. I'm sure his tastebuds are off after his surgery because he's been super picky with food. But lately you put food in front of him and he PICKS at it and plays with it.. but if he manages to get his hands on a piece of paper- HE EATS it. and unfortunately the same with DOG FOOD. The dogs are on a feeding schedule and rarely there is a time when a morsel is left on the floor or in the bowl, but Mason manages to find it and enjoy it for a snack. Just what I need- something else to make his breath even worse!!