Such a tasty dish.
Don't judge this recipe by my poor photography attempt.
1 lb ground beef or turkey
1 packet taco seasoning
15-ounce can tomato sauce
8 ounces medium shell pasta (I used bowtie since I'd run out of shells)
8 ounce package cream cheese, softened
1 cup sour cream
8 ounces shredded sharp cheddar cheese
Brown and drain the ground beef. Mix in the taco seasoning and the tomato sauce. Bring to a boil, then simmer for 20 minutes.
Meanwhile, cook pasta according to package directions.
Mix together the softened cream cheese and sour cream until smooth. Set aside.
Lightly mist the bottom of a 9x13 pan with oil. Pour the pasta into the bottom of the pan, then smear the cream cheese mix on top.
Spoon the sauce mix onto the top, then sprinkle with cheese.
Bake at 350° for 30 minutes.
Source: Cooking This and That