Pat the chicken breasts dry and season both sides with salt, black pepper, and garlic powder.
Heat 1 tablespoon olive oil in a large skillet over medium heat. Add the chicken and cook for about 5 to 7 minutes per side, or until the thickest part reaches 165°F.
Transfer the chicken to a plate and let it rest for about 5 minutes before slicing.
While the chicken rests, whisk together the lemon juice, olive oil, honey, Dijon mustard, garlic, salt, and black pepper until smooth
Add the mixed greens to a large bowl. Top with sliced strawberries, avocado, red onion, feta, and almonds or pecans.
Slice the rested chicken into thin strips and arrange it over the salad.
Drizzle with the lemon vinaigrette and gently toss just before serving.