I just discovered that making a vinegarette with lime juice (bottled is fine), olive oil, a little sugar and salt and pepper is very different and very tasty. I put it on kale salad---basic salad ingredients but with kale as the green instead of lettuce. You could easily take this to the picnic. The kale doesn't wilt like the other kinds of greens so you could even dress and toss before you left the house. My kale salad had a couple of chopped boiled eggs, some big-dice cucumber, red onion slivers, halved grape tomatoes and some leftover spinach leaves.....I made it up on the spot when I didn't feel like cooking dinner but it will be a "go to" dinner from now on. I will also add leftover chicken, etc. sometimes.