Wash salad greens and place in big salad bowl. Add in the grape tomatoes, salad veggies and chicken.
In a small bowl, whisk together the oil and vinegar and add in the salt and pepper to taste. Whisk again as you pour over the salad greens. Toss together to mix.
Add the chicken, avocado, berries, pumpkin/sunflower seeds and optional goat cheese and toss again. Serve and enjoy!