picky eater

MY db is a very picky eater. when i first got him i tried almost EVERYTHING and he finally settled on worms and crickets. he LOVES the dried shrimp ofcourse but that’s not enough for him along with it doesn’t have enough vitamins and calcium and so on in it. sometimes i put the sticks inside the worms for a better diet or something (i know gross!) but that is very time consuming and difficult. i feed my painted sticks and he’s fine with them. some people have told me that if i just don’t feed him he will eventually settle or ‘starve’ himself to eat the sticks. i can’t seem to bring myself to do that! does anyone have any ideas for diff foods he might like or any other ideas??? thanks sarah