1 c. mayonnaise (do not use substitute)
1 (8 oz.) pkg. cream cheese
1 (8 oz.) carton sour cream
1 pkg. Ortega's taco seasoning (dry)
1/4 c. milk

Blend the above ingredients until smooth. Spread in 9 x 13 inch pan. Add shredded lettuce, diced tomatoes, shredded cheese, chopped onion, optional; black olives, green peppers, avocado; on the top of the base; in layers. Serve with tostado chips and line chips around pan.