Prepare this salad as close to the serving time as possible—no more than 15 to 20 minutes before—or the avocado will discolor.
1. In a small bowl, whisk together oil, lime zest and juice, garlic and salt until combined. 2. In a medium bowl, combine avocado, hearts of palm, cilantro and scallions. Pour dressing over avocado mixture and gently fold together. Season with additional salt, if desired.