How do you get your little one to eat their vegetables?

My son is almost four. He used to be a great eater but as soon as he started feeding himself, he started being picky. One trick I've been doing is shredding different vegetables and putting them into things. I usually shred carrots and zucchinis. I would cook them up and put them into quiche, meat sauces, meatballs, omelettes, just about anything that can blend well with the shredded vegetables. It's been working wonders! I even put zucchinis in pancakes! Like a sweet and savoury pancake. I would also put corn in it too.