01 - Preheat your grill to medium-high heat, approximately 400°F.
02 - In a small bowl, whisk together olive oil, smoked paprika, garlic powder, onion powder, salt, pepper, and lime juice until well combined.
03 - Pat chicken breasts dry with paper towels. Brush both sides generously with the prepared marinade, ensuring even coverage.
04 - Place chicken on the preheated grill. Cook for 6 to 7 minutes per side, or until internal temperature reaches 165°F and juices run clear. Remove from grill and let rest for 5 minutes before serving.
05 - While chicken grills, combine diced avocados, cherry tomatoes, red onion, cilantro, lime juice, salt, pepper, and jalapeño if using. Gently toss to combine, being careful not to mash the avocados.
06 - Place rested chicken breasts on serving plates. Top each generously with the avocado salsa and serve immediately.