What do you feed your teenagers after school?

Hey all-I’ve recently moved in with my partner and his child and am responsible for preparing meals.

I was always used to one home cooked meal at night and more simple meals throughout the day-ie cereal/toast for breakfast, sandwhich/fruit after school and then ofcourse a home cooked meal for dinner.

I’m aware things have changed and would love some input / ideas on what to prepare for a teenager after school? I was doing a smoothie and wrap ( alternating ingredients weekly) with an addition of a novelty item once a week (plus weeks usually different) but have recieved feedback that it’s too monotonous and they want more variety. Any ideas or advice?