Combine bean dip and picante sauce; spread into a rectangle about 9-by 5-inches on a serving platter making a layer about 1/4-inch thick. Next carefully layer avocado dip and sour cream. Top with cheese, green onion, and olives. Cover and chill for 4 to 24 hours.
Before serving, sprinkle with chopped tomato. Serve with tortilla chips. Makes 16 appetizer servings (1/4 cup dip and 1/2 cup chips).