Seven-Layer Dip
["1 1/2 lb. ground beef", "1 (16-oz.) can refried beans", "4 c. shredded Mexican-style cheese, divided", "1 8-oz. container sour cream", "1 c. guacamole", "1 c. salsa", "1 (6- oz.) can black olives, chopped", "1/2 c. chopped tomatoes", "1/2 c. chopped green onions"]
["In a large skillet, brown ground beef. Set aside to drain and cool to room temperature."]
["ground beef", "beans", "cheese", "sour cream", "guacamole", "salsa", "black olives", "tomatoes", "green onions"]