Food for a teenage party

I'd honestly go for the cheap supermarket pizza and maybe a little extra cheese on top. Hot dogs could go in the slow cooker to keep warm, if you've got one of those.
Nuggets always seem to go down well with teenagers, maybe a few share bags of crisps too.
Drink wise I'd go for bottles of pop and buy a few packs of disposable cups and provide a sharpie. Easy for everyone to find which drink is theirs and they're more likely to drink it, whereas cans you end up with half finished cans everywhere as nobody knows if it's theirs or not!!

So many good pizza offers
Asda sell the big pizza express ones for a good price
Sainsbury’s do a really good 2 big pizzas and a side for £10

Can’t go wrong with pizza. DD is gluten & dairy free (NHS diagnosed) and I can cater for that with pizza. Her bff is fish/shellfish & sesame allergic (deadly) and another friend is deathly allergic to nuts. I cater for all that with pizza. Plus you can cover the vegetarians and vegans easily

One thing which is really boring to mention but having a child with an allergy, it's useful to know if anyone does just so you don't put anything out that might cause problems.

I second the big Tesco rectangular pizzas with extra cheese, tomatoes etc. And in the past Ive made a big bowl of guacamole with Doritos which went down really well. (And you can tell yourself they've had one of their 5 a day and feel virtuous. Sort of)

I buy the rectangular party pizza from Tesco, think it’s frozen. But any cheapish one will do and then buy some grated mozzarella to add on top and it’s fine. Teenagers don’t really notice! Bottle of drink are cheaper but cans are more convenient. I too would perhaps not bother with hotdogs. Crisps definitely. And sweet treats. I buy the bags of mini biscuits such as mini Maryland’s or fingers. Both Aldi and Lidl do their own versions of some things.

Pizza and crisps or chips here.
Birthday cake and sweets.
Cans of coke, lemonade. Bottles of J20 - there are 2 of DS1 friends that drink this, DS2's just go for the cans.

PS thank you for posting this, i read the title, answered "pizza" and then went, uh oh I need to make pizza dough. So, thanks to your question, I will have some tea tonight!

Ask ur daughter if she has been to something similar and what was served and popular.

Worth checking if there are any vegetarians if you’re just doing hot dogs. Pizza too would cover the bases. Fruit/muffins and crisps too perhaps?

How old are they? I'd probably just pick one food to serve, either just pizza or just hot dogs.