spoiled 2 year old starting daycare soon?

i'm starting a new job soon at a daycare. until now, i've been a SAHM with my just turned 2 year old son. he's an only child, and spoiled - very picky about food (he only eats crackers, potatoes and applesauce - everything else is "yucky"), and naptime (he takes good naps, but only for me, and only in his own bed. when we visit grandparents, he gets very upset and screams at naptime)

other than that, he really is a good kid, easy-going, well tempered, well mannered (please and thankyou, apologizing without being asked if he accidentally does something wrong or knocks over another kid while playing chase).

he's never been in daycare before. he's been away from me with sitters, even overnight, and for a couple weeks when i had a military reserve obligation, and he's fine with that - no seperation anxiety... but i'm worried about everything else as soon as he starts full-time daycare. i've been trying to work with him on things, and i know that i've made some mistakes (it's no one elses fault but mine that he's spoiled about some things) but i need some advice about how to get him ready for this, and some info on what i should expect?

thanks in advance, and please no nasty answers about how i shouldn't have spoiled him.