Prep time: 15 minutes. Cook time: approximately 12–15 minutes for chicken of moderate thickness, although thicker breasts may require additional time. Total time: approximately 27–30 minutes plus any additional cooking or resting time. Servings: 4. Nutrition estimates assume approximately one pound of raw chicken breast, one large avocado, plain nonfat Greek yogurt, regular mayonnaise, and the full dressing recipe. Optional corn is excluded. Choose boneless skinless chicken breasts of similar thickness for even cooking. Pat chicken dry before seasoning. Grill over medium-high heat for approximately 6–8 minutes per side, adjusting according to thickness. Always use an instant-read food thermometer and cook chicken to a minimum internal temperature of 165°F (74°C). Rest chicken for five minutes before slicing. Thoroughly wash and dry romaine lettuce and fresh vegetables. Choose a ripe but firm avocado and dice shortly before serving to reduce browning. Whisk dressing ingredients separately until smooth. If dressing is too thick, thin with a teaspoon of cold water at a time. Optional salad additions include cooked sweet corn, crumbled feta cheese, toasted pumpkin seeds, Kalamata olives, or cooked quinoa. For a lighter dressing, replace mayonnaise with additional plain Greek yogurt. For meal preparation, refrigerate cooked chicken, vegetables, and dressing separately. Store cooked chicken at 40°F (4°C) or below and use within 3–4 days. Store homemade yogurt dressing in an airtight container and use within 3–4 days for best quality. Assemble the salad shortly before serving. Do not leave perishable salad at room temperature longer than two hours, or one hour when temperatures exceed 90°F (32°C).