Mix taco seasoning with refried beans. Spread mixture in the bottom of a casserole dish. Mix the cream cheese and sour cream together then spread on top of the beans. Add a layer of salsa on top of the sour cream/cream cheese. Sprinkle the top with the diced lettuce, tomato, green onion and the shredded cheese. Chill for approximately 1-2 hours. Serve with tortilla chips.