S.H.
Hopefully he is still drinking formula? That is really all he needs until he is a year old. The other food he gets is really just "practice" or supplemental, but they rarely eat enough to sustain themselves on anyway. I would not give him any deserts, especially if that is all he is eating. Stick with formula and offer some healthy options... if he doesn't eat it, then don't worry about it right now... eventually he will because there won't be a "desert" option. If he refused to drink the formula as well, and starts to lose weight, etc., get to the doctor.