Italian Chicken Salad with Olives and Parmesan

arugula

1½ cup(s), (baby variety)

fresh tomato(es)

1 cup(s), (chopped)

olive(s)

9 large, (sliced)

uncooked onion(s)

2 Tbsp, (diced)

cooked boneless skinless chicken breast(s)

3 oz, (sliced)

shredded parmesan cheese

2 Tbsp

reduced fat store-bought Italian dressing

2 Tbsp