Fry diced bacon until done; add refried beans and cook slowly, stirring frequently until the bacon and bacon drippings are mixed through (about 15 minutes). Remove from heat and set aside. Mix taco seasoning with sour cream and set aside.
To built 9 layer dip, place ingredients in this order:
Refried beans, placed on a serving platter and spread out to 1ñ1 1/2 inches thick.
prepared sour cream/taco seasoning
sliced green onion
1/4 cup cheese for garnish, if desired
Serve with crisp corn chips and a very cold beverage of choice. Makes a great snack or light lunch.