Tostada Salad is a food preparation that is often served as a side dish in the Southwest American cuisine. The main ingredients required for preparing Tostada salad are Tortilla chips, chicken, refried beans, lettuce, guacamole, salsa, sour cream and green onions. A casserole dish is first layered with all the ingredients except the tortilla chips and the lettuce, and this mixture is put on top of crispy tortilla chips and lettuce and served immediately.