Anonymous wrote:They are old enough to manage their own food.

This. WTF are you doing catering to 15 year olds?

Anonymous wrote:That list does not strike me as particularly picky.

+1. My sister's boys will eat plain pasta with butter (spaghetti only), one type of chicken nugget, apple slices (red apples only cut into slices), bagels with butter, and eggo waffles with Nutella. These kids are 9 and 12.

Anonymous wrote:Make deconstructed meals like a taco bar, baked potato bar, main-dish salads with separate ingredients that people can customize (my sister makes salad nicoise like this), and so on.

This.

Also lots of pasta dishes with different toppings.

Most salmon and shrimp dinners I make fit this bill (unless perhaps you count butter as too much dairy), and cook very quickly, so weeknight-appropriate:

https://www.foodnetwork.com/recipes/ina-garten/panko-crusted-salmon-recipe-2107225

https://cooking.nytimes.com/recipes/1023259-peanut-butter-glazed-salmon-and-green-beans?smid=url-share

https://www.instagram.com/p/Cq_M-CUvToO/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

Beans and rice cooked in Instant Pot ahead of time. Add salsa, cheese and sour cream (for those who want it) when you come home.

Build your own subway sandwich
Meatball subs (slow cook the meatballs in sauce)

OMG they are old enough to cook their own meals!

Why do posters like you indulge them??

Make the stuff you/they like in massive quantities, then freeze in meal sized chunks. Curries and soups and stews freeze wonderfully. These are good easy weekday dinners when you’re tired and in a hurry.

For new things to try that are quick options, I like budget bytes peanut tofu bowls (also excellent with shrimp), stir fry or fried rice with tofu or seafood as the base protein, hummus and veggie sandwiches, avocado pasta.