Step 1

Combine the refried beans, rotel tomatoes and taco seasoning.  Spread it in a 7 x 11 inch casserole dish.

Step 2

Mash the avocado.  Mix in the lime juice, garlic, cilantro, onion powder, salt and cayenne.  Spread it over the bean layer.

Step 3

Carefully spread the sour cream over the avocado layer.  Top with the finely shredded cheese, black olives, tomatoes and green onions.  Cover and refrigerate until ready to serve.