I usually buy the MH meals in #10 cans which drops the price per serving way down. I measure out what I need and seal it up in vacuum bags for the trip, but I don't vacuum out the air. What I don't use I put in mason jars and vacuum pack for future trips. I also use MH as an entrée and bring additional items to finish out the meal, like pita chips and cheese to go with the MH spaghetti.