High protein, low calorie, non-perishable lunches
I'm looking for ideas for lunches that are high in protein, no more than 300 cals, and can last unrefrigerated for about 4-6hrs. There are many days where I'm out and about most of the day and have nowhere to keep food cool. I tend to bring pb&j sandwiches (they don't fill me up and are high in cals), or a "sushi bowl" I…