Pat the chicken breasts dry with paper towels. Rub them with 1 tablespoon olive oil, garlic powder, paprika, salt, and black pepper until evenly coated.
Heat a grill pan or outdoor grill over medium-high heat for about 3–5 minutes.
Place the chicken breasts on the hot grill. Cook for 6–7 minutes on one side.
Turn the chicken over and cook for another 6–7 minutes, or until the chicken is fully cooked and the internal temperature reaches 165°F (74°C).
Remove the chicken from the grill and let it rest for 5 minutes. This helps keep the chicken juicy.
In a large bowl, combine the mixed salad greens, cherry tomatoes, cucumber, red onion, and shredded carrots.
In a small bowl, mix the lemon juice and 1 tablespoon olive oil until combined.
Cut the grilled chicken into thin slices.
Place the sliced chicken on top of the prepared salad.
Drizzle the dressing over the salad. Toss gently if desired and serve immediately.