Preheat a grill pan or skillet on medium-high heat.
Season the chicken breast with salt, pepper, and a squeeze of lemon juice. Sprinkle with half of the chopped fresh herbs.
Grill the chicken for about 6-7 minutes per side or until fully cooked and juices run clear. Let it rest before slicing.
While the chicken is cooking, drain and rinse the chickpeas. Pat them dry and toss with a small amount of olive oil, salt, and pepper.
Heat a small skillet over medium heat and roast the chickpeas for 5-7 minutes until crispy, stirring occasionally.
In a large bowl, combine mixed greens, halved cherry tomatoes, and sliced cucumber. Drizzle with the remaining olive oil, lemon juice, and sprinkle the rest of the herbs. Toss lightly.
Top the salad with sliced chicken and crispy chickpeas. Serve immediately.