Try a "tasting bowl." Put new food in a small dish next to your kid's dinner plate. They need to taste the food at some point. If they don't like it they keep the bowl on the table. This teaches it's okay to not like something but not ok to meltdown if there is something on the plate they don't like. (Plus you're more inclined to take another bite if it's in front of we all probably know to well!)
— @KristinQuinnMom via PediaSure Contest Winner Julie Wood