Packets of wraps or chappatis are very versatile. I make 'quesadillas' with slices of cheese, and / or ham, maybe a slosh of jar pasta sauce or some fresh toms and chilli sllices sandwiched between two wraps (can be seeded or whole meal) and fried, and then cut in quarters.
Wraps and chappatis keep well in their sealed packs.
Things we barbecue or cook over open fire: corn on the cob, mushrooms (in my BBQ wok - marinaded in HP sauce or whatever is to hand), halloumi (to have in wraps with salad).
Vegetable parcels: roughly cut up veg such as courgettes, peppers, aubergines,tomatoes (go easy because of the juice), some green beans would be OK, finely cut red onion. Lay on a sheet of good foil, maybe doubled up, drizzle with olive oil, chuck in chopped garlic, mixed herbs, black pepper, maybe a squeeze of lemon, a sprinkling of sugar. Wrap parcel very well but not too tightly, bringing the sides of foil up with a seam along the top. Put on BBQ or in the edge embers of the fire for 20 mins or so. Eat with crusty bread and a BBQ'd sausage or whatever.