as posted by hummingbird_0331 in the January 2005 What's for Dinner? thread.
JUST FOUND THIS ONE:
Taco Bake
1 pkg 14 oz kraft deluxe mac n cheese dinner
1 lb ground beef
1 pkg (1 1/4 oz) taco seasoning mix
3/4 cup sour cream
1 1/2 cups shredded cheddar cheese, divided
1 cup salsa
Prepare mac n cheese dinner following directions. While mac n cheese is cooking, brown meat, drain.
Add taco seasoning mix and 3/4 cup water to the meat, simmer 5 mins
Stir sour cream to prepared dinner. Spoon half of the dinner mixture into a 8 inch square baking dish; top with layers of the meat mixture, 1 cup of the cheese and remaining dinner mixture. COVER
Bake @ 400 for 15 mins. Top with slasa and remaining 1/2 cup cheese.
Bake UNCOVERED an additional 15 mins.
*makes 6 servings it says*