Preheat your grill or a cast-iron grill pan to medium-high heat.
Pat the chicken breast dry with a paper towel and rub both sides with extra virgin olive oil, sea salt, and black pepper.
Place the chicken on the grill and cook for 6 to 7 minutes per side, or until the internal temperature reaches 165°F.
While the chicken is grilling, hull and finely dice the strawberries.
Finely mince the red onion, jalapeño (remove seeds for less heat), and fresh cilantro.
In a small mixing bowl, toss together the diced strawberries, whole blueberries, red onion, jalapeño, lime juice, and cilantro.
Allow the salsa to sit for at least 5 minutes to let the juices release and flavors meld.
Prepare a serving plate with a base of fresh baby spinach and the warm cooked quinoa.
Once the chicken is cooked, let it rest for 3 minutes before slicing it into strips.
Place the sliced chicken over the spinach and quinoa, then spoon the fresh berry salsa generously over the top.