01 - Pat the chicken breasts dry with paper towels and season evenly on both sides with salt and black pepper.
02 - Heat 1 tbsp olive oil in a skillet over medium heat. Add the chicken breasts and cook for 6–7 minutes per side, until golden brown and cooked through to an internal temperature of 165°F. Transfer to a cutting board and let rest for 5 minutes before slicing thinly against the grain.
03 - In a small bowl, whisk together the olive oil, balsamic vinegar, honey, Dijon mustard, poppy seeds, salt, and pepper until smooth and well emulsified.
04 - In a large salad bowl, arrange the mixed greens as the base. Scatter the sliced strawberries, red onion, crumbled feta cheese, and pecans evenly over the greens.
05 - Lay the sliced chicken over the top of the salad.
06 - Drizzle the poppy seed dressing over the salad just before serving. Toss gently to coat all ingredients evenly. Serve immediately.