If you look at the food selections in starfield it follows what astronauts currently eat//projected to eat in theory for deep space travel. The reason chunks is so popular is not just because it’s everywhere but you can take it on your ship as rations. Same with the bugs, I read a report that they could use certain bugs like worms as a protein replacement due to the science required to break the atmosphere. Because every single unit of weight must be calculated for fuel consumption entering and exiting atmospheres(a problem we don’t really have on our player ships due to instant refilling he-3 gas tanks