Increased food waste issues

Hiya, I am quite sustainably conscious and I am struggling with the amount of food we are wasting. My children are both on the spectrum and are picky eaters and although they are now eating much better, we try new foods regularly and even foods they used to like they suddenly don't like anymore. This means we end up with loads of food waste. I have a compost for fruit and veg scraps but the amount of food we waste daily is awful. I try to save food from plates and even donate leftovers. I am wondering what everyone else does to decrease their food waste?