2 cans refried beans
1 pkg. taco seasoning, mixed with 2 c. sour cream
3 large tomatoes, chopped
1 large onion, chopped
2 small cans chopped black olives
2 c. shredded cheese

Layer on pizza pan in the following order: refried beans, sour cream mix, tomatoes, onions, olives and cheese. Chill and serve with nacho chips.