Taco Dip

16 oz. sour cream
16 oz. cream cheese
1 1/2 packages of taco seasoning
1 c. shredded lettuce
1 c. tomatoes diced (optional)
1/2 c. green onions, chopped (optional)
1 large bag Mexican blend grated cheese

Blend sour cream, cream cheese and taco seasoning until smooth. Spread evenly on a serving tray. Layer remaining ingredients in any order saving cheese for last layer. Serve with chips. Refrigerate until ready to serve.