Quick Chicken Tostadas

Name: Quick Chicken Tostadas
Ingredients: 8 tostadas (crispy whole corn tortillas); 1 ripe avocado, peeled, pitted and sliced into wedges; 1 cup thinly sliced romaine lettuce; 1 cup grated pepper jack cheese; 1 cup refried beans; 3/4 to 1 pound shredded rotisserie chicken meat; 1 cup chunky salsa or diced tomatoes