Hearty greens and vegetables like kale and Brussels sprouts make an excellent base for prep-ahead salads. They don't wilt after a day in the crisper, and they stand up to any number of toppings. Bonus: They're loaded with nutrients, vitamins and minerals you won't get from your basic iceberg wedge. The sweetness of dried cranberries balances the slight bitterness of the greens and scallions. Use this recipe as a starting point for healthy grab-&-go power lunch salads.