Kale is the trendiest leafy green these days, and for good reason: just one cup of the superfood contains staggering amounts of vitamins A, C and K, as well as calcium, fiber, iron and inflammation-fighting omega-3s. Coupled with an olive oil-based, egg-free dressing, this more nutritious take on a classic salad is great to tote to the beach or park for picnics during warm weather.