Arrange chips on a large microwave-safe plate; set aside. Heat chili in a microwave-safe bowl on high setting for one minute; stir. Microwave for another minute; set aside. Sprinkle tortilla chips with cheese; microwave on high setting for 30 seconds. Spoon chili and queso sauce over cheese; sprinkle with lettuce, onion and peppers. Top with black olives and green chiles, if desired. Add a dollop of sour cream; sprinkle with tomato and chives.