1 ripe avocado
1/4 cup mayonnaise
1 teaspoon garlic powder
Juice of half a lemon or lime
1 cup sour cream
1 can refried beans
1 envelope taco seasoning
1 cup shredded sharp Cheddar cheese
Shredded lettuce
Diced tomatoes
Chopped black olives

In a bowl, mix the can of refried beans with the envelope of taco seasoning. Set aside.

In a nonreactive bowl, mash the avocado until smooth and creamy. Add lemon or lime juice, garlic powder and mayonnaise and mix very well. Spread the refried bean mixture in an 11 x 7-inch pan. For the next layer, spread the sour cream. For the next layer, spread the avocado mixture. Sprinkle the lettuce on that layer, and the cheese and tomatoes and olives on top of that.

Refrigerate until 15 minutes before serving.

Serve with tortilla chips.