For the Dressing: Whisk together the olive oil, lime juice, lime zest, and honey. Season with salt and pepper.
Toss the arugula, cucumber, and red onion with half of the dressing. Place into your serving bowl or dish. Arrange sliced avocado pieces over the top. Finally, garnish with the microgreens.
Drizzle with remaining dressing, if desired or serve remaining dressing on the side. Serve immediately.
Notes
Wait to dress the salad until service, as the arugula can get weepy.
Do not slice avocados until right before service to avoid browning.
See post for suggested modifications or substitutions.