Pat the shrimp dry with paper towels and season them evenly with sea salt and black pepper.
Heat the olive oil in a large skillet over medium-high heat and add the minced garlic, sautéing for 30 seconds until fragrant.
Add the shrimp to the skillet and cook for 2 to 3 minutes per side until they are pink, opaque, and slightly curled.
In a small bowl, whisk together the lemon juice with the freshly chopped parsley and dill to create the dressing.
In a large salad bowl, combine the mixed greens, sliced cucumber, and halved cherry tomatoes.
Slice the avocado and arrange it on top of the salad vegetables.
Add the warm sautéed shrimp to the bowl and drizzle the lemon-herb dressing over the top.
Toss the salad gently to coat all ingredients and serve immediately while the shrimp is still warm.