For an extra layer of flavor, consider adding a pinch of red pepper flakes to the dressing. If you don't have agave syrup, honey or maple syrup can be used as a substitute. To prevent the avocado from browning, you can toss it with a little lemon juice before adding it to the salad. This salad is best enjoyed fresh. If storing, add the avocado just before serving to prevent it from becoming mushy.