01 - Preheat a grill pan or skillet over medium heat. Season the chicken breasts with olive oil, salt, and pepper.
02 - Cook the chicken breasts for 6–7 minutes per side, or until cooked through and juices run clear. Let rest for 5 minutes, then slice or dice.
03 - In a bowl, whisk together mayonnaise, Greek yogurt, Dijon mustard, honey, lemon juice, minced garlic, salt, and pepper until smooth and creamy.
04 - In a large salad bowl, combine salad greens, cherry tomatoes, red onion, cucumber, and avocado.
05 - Add the sliced chicken on top. Drizzle with the creamy honey mustard dressing and toss gently to coat.
06 - Sprinkle with roasted sunflower seeds, if using. Serve immediately.