Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  32      ounces        refried beans
   4                    avocados
   2      tablespoons   lemon juice
   1      cup           sour cream
     1/4  cup           mayonnaise
   1      package       taco seasoning mix
   1      bunch         green onions -- sliced
   2                    tomatoes -- diced
   8      ounces        cheddar cheese -- grated -or-
   8      ounces        Monterey Jack cheese -- grated

Preparation:

On a round plate, spread beans. Layer mashed avocados over beans and sprinkle with lemon juice. Mix sour cream, mayonnaise, and taco seasoning mix, then spread over avocados. Layer half of onions, all tomatoes, and all the cheese on top. Sprinkle remaining half of onions on top. Serve with tortilla chips.