Taco Pasta Shells

Boil 24 jumbo pasta shells and toss with butter and cool.  Cook 2 lb ground chicken and mix with 2 packages taco seasoning.  Add 8 oz cream cheese, mix well and cool.  Grease 9x13 pan, pour 1 cup salsa in the bottom of pan.  Fill taco shells with meat mixture and place in bottom of pan.  Cover with 1 cup taco sauce and bake at 350 degrees for 30 minutes covered.  Uncover and sprinkle with 1 cup cheese and 1 1/2 cups crushed tortilla chips.  Bake for 15 minutes longer and serve with sour cream and chopped cilantro.