Dewey's Pizza 1312 Clarkson Clayton Ctr, Ellisville, MO63011 Dewey's Pizza offers an extensive menu of specialty pizzas and other dishes, including salads. This branch of the pizza…More chain is located on Clarkson Clayton Ctr. Here, guests will find pizzas with white sauce, as well as red. A few of the available pie choices include pepperoni, meatball, veggie, wild mushroom and barbeque chicken. Beverages here include craft beers and wines. The atmosphere is fun and casual, and music plays in the background.