Susan..there is a mini-kitchen..(like you'd find in a church) in the retreat center. So we can heat stuff and wash our own pots & pans. There are also microwaves...(even in the cabins).
We can lay out stuff and eat in the dining hall, but we'll have to carry things back & forth if they need to be heated. (Only a very short walk)...Then we'll need to clean up after ourselves before we all quit for the night. So...if everyone takes responsibility for "dealing with what you bring", it should be fine. It's 'different', but workable. (The last 5 years we didn't have any place to wash dishes, and that was awkward.)