what to bring with on a weekend trip
Bring cheese, veg and craker tray or do something like an egg bake you can do that a head of time, for you to munch on bring cheese, beef jurkey, tuna, plus you cna always bring something you "shound't" eat but then have only a taste.
Have fun and don't worry about the food i'm sure there is going to be enough and they won't even pay attenetion to what you brought.
My thoughts are: FF/SF pudding snack cups Flavor packs for your water (i.e. Water Sensations, Crystal Lite, Special K protein - comes in single stix now, too) Jerkey String cheese Clementines or apples, if you can tolerate
If you like crunch - peanuts, Just the Cheese baked rounds (order online at Amazon), or Soy Crisps from Trader Joe's (the white cheddar flavor is great IMO).
Or, if you're each bring something and have a fridge & microwave, you could always bring meatballs or something like that. The sausage/cheese one's are good, too - and easy to make. If you need a recipe, let me know. Focus on the conversation and bonding time, not the food, and you'll do great! If the snacking of the others gets overwhelming, maybe ask another if they'd like to join you on a walk. Gets you out of the immediate area and you can re-focus. Have a great time!!!
Imperfect does not = unsuccessful