CS has a bit of everything -- I haven't ordered a burger at WDW in probably 10 years (unless you count the black bean burgers available at some locations), nor have we even had the same genre of CS food twice in one trip. At the same time, it's not like the food is so "out there" that a typical teen (assuming mine are typical, anyway - that might be a stretch!) can't find something they like on the menu.
E.g., a week-long trip for my family would include meals at a few of these CS favorites of ours: Pecos Bill (MK, Tex-Mex tacos and fajitas); Tangierine Cafe (Epcot's Morocco, shawarma platters - that is, roasted meats - with tabbouleh and baklava); Columbia Harbor House (MK, fried seafood platters, chicken pot pie and lobster rolls); Yak & Yeti CS (AK, sesame chicken, Asian wraps and salads, egg rolls); Flame Tree BBQ (AK, chicken and ribs); Sunshine Seasons (Epcot, fresh salads, noodle bowls, hot and cold sandwiches); Yorkshire County Fish Shoppe (Epcot's GB, fish 'n chips); and Sommerfest (Epcot's Germany, bratwursts and sauerkraut). (A tip: we've never found CS pizza that was much good, but if you go to Via Napoli, a TS in Epcot, and just order a big pizza to share, you won't spend any more for the meal+tip than you would at a typical CS, and the pizza there is delicious.) That's not to say that nobody else in my family ever orders a burger or chicken tenders, but if they do, it's because that's what they want to eat, and not because they're lacking other choices.
For a look at the vast CS variety available, and to search for specific items you know the kids enjoy (e.g., sushi, barbecue, nachos), the touringplans menu finder tool is a handy way to search all of the CS menus at once:
https://touringplans.com/walt-disney-world/dining/menus
