You've undoubtedly seen the grapefruit-avocado combo before. You get the creaminess of the avocado and the tart sweetness of the grapefruit — pretty fantastic. One way to take it to the next level is to add heat and textural variety. Doing that with fresh hearts of palm and finely-diced jalapeño accomplishes both. If you can't find fresh hearts of palm you can use the canned stuff, but it won't have the same crunch — that added contrast we're looking for. Adding fresh lump crab meat makes it a refreshing salad, or even something you could eat by itself as a light meal. Except for separating thegrapefruit suprêmes, it's easy and quick too.