... just thought of this... you could make a greek salad but just cut up the vegetables before hand in a big container and then bring feta cheese and olives separately in your cooler and add that right before you eat it. Or do the same thing with a cobb salad... keep the veggies cut up in a container and then add the meats from your cooler right before you serve. It could be tough only because you would need a fridge or a big cooler for everything.