Prep the shrimp: Pat shrimp dry with paper towels. Season with salt, pepper, and a small pinch of cumin.
Cook the shrimp: Heat a large skillet over medium-high with a drizzle of olive oil.
Cook shrimp 1–2 minutes per side, until pink and just opaque. Remove to a plate to cool slightly.
Mix the dressing: In a small bowl, whisk 3 tablespoons olive oil, zest of 1 lime, juice of 2 limes, 1 teaspoon honey, minced garlic, a pinch of cumin, salt, and pepper. Taste and adjust acidity or sweetness as needed.
Prep the veggies: In a large bowl, add greens, cucumber, tomatoes, red onion, and cilantro.
If using jalapeño, add it now.
Dice the avocado last: Cut avocados into chunks and gently toss with a teaspoon of lime juice to prevent browning.
Combine: Add the shrimp and avocado to the salad bowl. Pour over most of the dressing and gently toss to coat. Add more dressing if needed.
Finish and serve: Taste for salt and pepper.
Serve immediately as-is, or with tortillas, toast, or over warm rice.