Parents didn't teach me how to eat healthy?

So my parents didn't teach me how to eat right. When I went to elementary school, they would always lazily hand me some unhealthy lunchables. (a bit better now, but one luncheables used to come with a soda, nachoes, and shock tarts, no joke.) My mom used to cook but threw in the towel and now we usually just bake a frozen pizza or something you can microwave like pizza rolls. We also buy fast food frequently. I asked my parents recently how I can eat healthy and all they said was "fruits and vegetables" but EVERYONE knows that and it's not helpful at all. First of all, there are so many of them and I want to know specific benefits that each fruit/veggie provides. 2nd of all, they don't mention meals, I don't know anything about cooking and I don't just want an apple and peas (fruits and veggies) for dinner 7 days a week. Help?