I usually go for the easy and quick. When tramping, my recipes are the same, mince and mashed potatoes, sausage and mashed potatoes, steak and mashed potatoes.

Mashed potatoes come in instant packs and it's quick to make. Add butter, hot water and milk power... voila... the dinner is ready.

However, for a gourmet recipe, we don't need a lot but creativity.

Think about everything you can use to make an easy recipe... Couscous, rice, seasonings of all types, sauces.
Now think what you can do easily and quickly.
Couscous with some spices, tuna with a nice sauce.
Or maybe, we could try a non-oven version of shepards pie.
Sausage cassarole, so we can use those pre cooked sausage and short the cooking time.

Vegetarian?!? Heaps SE Asia dishes... Have a look at the nepali recipes or indian recipes.

The gourmet trip is more than a tramping trip, it's a group exercise...
Start a discussion with your group about what the group can prepare.
Be creative. Believe me, it's a lot of fun. :)