PREPARATION:
- Cut cream cheese into 1/2-inch cubes. Let stand at room temperature until softened. Cook pasta according to package directions. Place in colander and rinse under warm running water. Drain well. Return to saucepan.
- Meanwhile, preheat oven to 350°F. Butter 13X9-inch baking pan.
- Brown beef in large skillet over medium-high heat 6 to 8 minutes, stirring to separate meat. Drain fat. Reduce heat to medium-low. Add cream cheese, salt and chili powder; simmer 5 minutes.
- Toss shells with butter. Fill shells with beef mixture. Arrange shells in prepared pan. Pour taco sauce over each shell. Cover with foil.
- Bake 15 minutes. Uncover; top with Cheddar cheese, Monterey Jack cheese and chips. Bake 15 minutes more or until bubbly. Top with sour cream and onions. Garnish with lettuce, olives and tomatoes.
