1 can Frito-Lay bean dip
1/2 c. mayonnaise
1/2 pkg. taco seasoning
1 c. Cheddar cheese
1 c. Monterey Jack cheese
1 c. chopped tomatoes
1/2 c. chopped onions
1/2 c. chopped green pepper
Chopped black olives

Layer can of bean dip over bottom of serving dish. Mix taco seasoning and mayonnaise layer next. Layer cheeses. Layer finely chopped tomatoes and onions and green pepper in that order. Black olives are the last ingredients. Serve with taco chips.