Make the strawberry salsa: in a mixing bowl combine the chopped strawberries, finely chopped jalapeños, finely chopped onion, chopped cilantro, honey, lime juice, and a pinch of salt and pepper; stir gently to combine and set aside.
Mix the dry seasoning: in a small bowl combine the kosher salt, ground black pepper, ground cumin, chili powder, onion powder, and garlic powder.
Prepare the chicken: drizzle the olive oil over the chicken breasts and rub to coat both sides, then evenly sprinkle and rub the dry seasoning over the chicken.
Preheat the grill to medium-high heat and oil the grates lightly to prevent sticking.
Grill the chicken: place the chicken on the hot grill and cook about 15–20 minutes total, flipping once halfway through, until the internal temperature reaches 165°F (74°C) and the juices run clear.
Rest and serve: remove the chicken from the grill and let rest 10 minutes, then serve topped with the strawberry salsa.