1 can (16 oz.) refried beans
1 container (16) oz. sour cream
1 pkg. McCormick original taco seasoning
1/3 c. sliced green onion
1 large bag tortilla chips

Optional:

1/4 c. sliced black olives
1 c. chopped avocados

Spread refried beans evenly onto bottom of large serving dish. Mix sour cream with taco seasoning. Spread over beans. Top with layers of your remaining ingredients. Serve with the tortilla chips.