Season the shrimp with salt and black pepper.
Heat olive oil in a skillet and cook the shrimp for 2–3 minutes per side until pink and fully cooked.
Allow the shrimp to cool slightly.
Wash and dry the mixed greens and cherry tomatoes.
Slice the avocado and halve the cherry tomatoes.
In a large bowl, combine the mixed greens, shrimp, avocado, and cherry tomatoes.
Add the basil pesto and fresh lemon juice, then toss gently until evenly coated.
Garnish with fresh basil leaves and serve immediately.