i have kind of learned that if my daughter (who is 4) is not interested in something, then she will just not eat it. and i should let it go. who knows, maybe she'll come around one day and try one of my veggie burgers or zucchini noodles? i try to stick to stuff i KNOW she loves, and then let her pick the rest of her meals/snacks.
for instance, she loves smoothies. and will even drink green smoothies. so if you haven't tried that, give it a shot. spinach is nice and mild and often isn't detectable.
always have lots of fruit on display as well. bananas, apples, kiwis, oranges, etc. strawberries if there are nice organic ones at the store, grapes....you can cut them up and make a nice fruit salad, top with a bit of shredded coconut.
and also, raw desserts. they are soooo much healthier (& tastier!) than packaged sugar-filled cookies and ice cream.
another idea is a snack plate with grape tomatoes and sliced cucumber. maybe some hummus if your daughter likes that?
good luck! hope i helped