As we reported last summer, HI-SEAS is the first mission specifically designed to study the role of cooking and food preparation on the kind of extended space missions that America is planning in the future. And while a big part of interstellar travel will focus on what we learn outside the safety of our climate-controlled habitats, everyone's gotta eat.

Crew members Sian Proctor and Angelo Vermeulen cook tsampa, a Tibetan food that consists of roasted flour. Photo: Sian/NASA HI-SEAS

As Yajaira Sierra-Sastre, one of the explorers, explains, the goal was to conduct "a food, mood, and nasal study that investigates the relationship between food preparation time, repetition of foods, perception of food aromas, food acceptability, and food intake in a confined and isolated setting similar to what an astronaut would experience during a mission at a lunar or planetary outpost."

The "astronauts" were assigned a cooking schedule, with each responsible for a turn at the stove in between their other activities.

"We wanted them to be very busy, not sitting around studying cookbooks for elaborate dishes, because that's not reality. That's not what would happen [on a real space mission]," says Hunter.

Sure, they had many prepared meals on hand — the creamy wild rice soup and mashed potatoes were favorites, as well as the comfort of Nutella and the novelty of Tang. But HI-SEAS crew commander Angelo Vermeulen says some of the best meals were improvised and hand-held.

Wraps of all kinds were a big hit with the crew. Here's one take: a tuna wrap filled with rehydrated vegetables. Photo: NASA HI-SEAS

"Wraps work really well: We combine tortillas, different vegetables, Velveeta cheese, and sausage or canned fish into ever-changing combinations," Vermeulen tells Astrobiology Magazine.

Some other successful meals included Russian borscht and Moroccan tagine.

The crew also enjoyed testing the two dozen recipes that the public sent in for them to try. (It's no Food Network production, but check out this video of crew members baking Hawaiian Celebration Cake using dehydrated pineapple.)

However, the mission didn't stop at just cooking and eating and mugging for the camera. The sharing of mealtimes — the chance to seek feedback from others, work together and get away from the isolation of working alone on your own project, Hunter says — made it stimulating.

The crew even had to work together to create a 3-D printed replacement part for their broken dishwasher.

There's much more to learn as the explorers are debriefed over the next few days, Hunter says, but "despite the time demands and the clean-up demands of cooking, the crew felt overwhelmingly that [it was worth it,]" she says.

After some much-needed runs on the beach and some extra sleep, the crew members will assist Hunter and the other researchers in setting up the next phase of the mission. But this time, they'll be safely back at Mission Control, watching other explorers navigate their former habitat.

Copyright 2013 NPR.

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