Put refried beans in a shallow serving dish. Mix the sour cream and taco seasoning mix together till well blended. Spread over refied beans.
Top with 2 cups of shredded cheese, the guacamole, tomatoes, green onions, black olives and diced avocados. It will be all in layers. Tossing the avocado in lime or lemon juice helps to keep from browning to fast.
Serve with your favorite chips or put it on a soft taco shell and roll it up.