When Sully was a puppy, he had 3 scheduled feedings a day. He liked to eat a bite here and there but his appetites were not big enough to eat much. That's why we started being strict about it. When he would walk away from his bowl, he got his food taken away!!! It didn't take long at ALL until he learned to eat what was in front of him (as much as he wanted anyway) else it would be taken away! LOL. This also helped with his crate training b/c we learned his poopy-schedule.
Now Sully is a year and 5months old and we do 2 scheduled feedings a day. It's just our routine now and I think having mealtimes is good for him...especially since we're going to be getting a new puppy in the next few months.
Oh, and we only do dry food, btw.