Season the chicken on both sides with salt, pepper, and Italian seasoning. Set aside.
2 chicken breasts, ½ teaspoon salt, ¼ teaspoon ground black pepper, ¼ teaspoon Italian seasoning
Heat a griddle or grill over medium heat. After the pan heats, brush it lightly with avocado oil then add the chicken.
1 tablespoon avocado oil
Cook the chicken for 5 to 6 minutes on each side, until the juices run clear and there is no pink in the center. Remove to a waiting plate, and allow to rest for 10 minutes before slicing.
Add the chopped lettuce to a large serving dish, then layer in the chicken, tomatoes, avocados, and onions. Drizzle with the lemon basil dressing, and toss to combine the ingredients.
3 cups romaine lettuce, 1 avocado, ½ pint cherry tomatoes, ¼ cup purple onion, ½ cup lemon basil vinaigrette
Divide into four serving bowls, and serve immediately. Store leftovers in the refrigerator for up to 3 days.