Perogies and ham, chicken fingers and fries, and grilled cheese sandwiches are all the big hits around here. I have a veeeeery picky 5 year old boy, but I am learning that he will eat if he is hungry enough. I think part of the problem is that mom and dad are packing HUGE snacks for him to eat at school. So he's not very hungry at lunch, doesn't eat much, and then by 1:30/ 2 o'clock he is starved.
Anyway... veggies and dip go over fairly well, but not cooked veggies. And it depends on the fruit, but most of them will eat most fruit.