My co-workers often tease me that almost every dish I make includes feta and tomatoes. While they are mostly right, I opted to use sweet, tiny Champagne grapes in lieu of tomatoes for this recipe. Though they are difficult to eat off the stem, they provide a tiny burst of flavor in each bite that nicely balances the tangy feta.
Heat a dry skillet over medium-high heat. When hot, add the pumpkin seeds and toast for about 2-3 minutes, shaking the pan so that they don't burn. (You'll start to smell the oils being released once they are getting nice and toasted.) Set aside and allow to cool.
Meanwhile, in a large serving bowl, mix the lime juice, oil, salt, and pepper to taste. Add the greens and feta, tossing lightly to coat. Top with the grapes and seeds and serve immediately.