Place lettuce on a plate, (or in a bowl). Wash and cut tomatoes and onion, and place on salad. Warm chicken through (if not already warm), and place on salad.
Microwave pepperonis on a paper towel for 30-60 seconds, or until crisp like bacon. Crumble pepperonis evenly over salad.
Sprinkle seasoning over salad, followed by parmesan cheese. Warm pizza sauce in the microwave for 30-45 seconds and pour over salad just before serving, (this will melt the parmesan cheese just a bit?Yum!) Top with additional toppings or veggies if desired!