Try cutting the foods you want your toddler to eat into different shapes with cookie cutters. Children also like miniature foods. Make the food fun and you both win!
Make his food look fun, cut it up differently than you usually do. You can also make food you know he will eat. Give him a choice if he's old enough to pick between two foods.
If your toddler has already developed a picky style then an option is to hide the veggies. There are several recipe books available. Also offer soups with veggies or sauces.