01 - Preheat the grill or a grill pan over medium-high heat.
02 - Rub chicken breasts with olive oil, garlic powder, paprika, salt, and black pepper.
03 - Grill chicken for 6–7 minutes per side, or until fully cooked (internal temperature 165°F). Remove from heat and let rest for 5 minutes, then slice.
04 - In a small bowl, whisk together olive oil, lemon juice, Dijon mustard, honey, salt, and pepper to make the dressing.
05 - In four meal prep containers, evenly divide salad greens, cherry tomatoes, cucumber, carrots, red onion, and avocado.
06 - Top each container with sliced grilled chicken and sprinkle with feta cheese, if using.
07 - Drizzle dressing over the salads just before serving, or pack it separately to keep the salad crisp.