Lunch/dinner ideas/tips

Tatiana🇨🇷♈️💍🇩🇴♏️ • Happily Married. 💏 👰🏽 12.19.08 💙 07.10.16 💓 02.29.20 💙 🐸 🤱🏽BreastMILK is best 🚫 formula

What do you usually have for lunch/dinner? I have a very picky 3 1/2 year old who only really wants to eat chicken nuggets and French fries. My 11 year old is on the heavier side so I’m looking for some healthy recipes/ideas.