Trangia's cooking sets all pack together tight and provide pretty much everything for backcountry cooking. The 27 size is smaller than the 25 size so it depends on the size of group you've got. The stoves are compatible with either Trangia's spirit burner (included) or gas burner (available separately).
The Trangia 27-1UL
Provides compact, lightweight meal prep for 1 - 2 people and includes 2 - 1.0L ultralight hard anodized aluminum sauce pans, frypan (18cm diameter), with with a spirit burner, pot grip, windshields (upper and lower), and strap. Separately available: kettle, gas burner, etc etc
Trangia's 25-1UL Colour Collection
Trangia celebrates 100 years of making the quietest, most compact, ingenious outdoor cooking stoves on the market today. Available in either Cloudberry, Northern Pine or Power Pink colour options, these anniversary cooksets feature 2 pots (1.75L and 1.5L), a 22cm frypan (UL Aluminum), windscreens (upper and lower), a pot gripper, strap, and Trangia's venerable spirit burner.