Name changed for this as I think I'm probably being silly and stingy.
I have been working for the same organisation for about 5 years. I have recently moved departments and the culture in the new team is to take it in turns buying in food for everyone. This seems to sometimes be breakfast, sometimes lunch.
The problem is, they spend a lot of money! Someone bought in Greggs breakfast last Friday, spending over £30. I saw the receipt by chance. A few days before someone had ordered several pizzas to be shared between approx 20 people.
I really don't want to have to start buying food for the whole team. I don't have much spare cash. I always pre-prepare my own lunches etc to save £.
What can I do? This is new to me. I don't want to seem unfriendly by refusing their kind offerings, but I don't want to eat it and not return the favour. It's very awkward!