Steps
1. Season the chicken breast with salt and pepper.
2. Heat olive oil in a pan over medium heat and grill the chicken until fully cooked, about 5-6 minutes per side.
3. Let the chicken rest for 5 minutes, then slice into strips.
4. In a bowl, combine mixed greens, cherry tomatoes, cucumber, and watermelon cubes.
5. Drizzle lime juice over the salad and toss gently.
6. Top the salad with the sliced chicken and garnish with fresh mint leaves.
7. Serve immediately.