Ingredients

Instructions

  1. Preheat oven to 350 degrees Fahrenheit.
  2. Coat a 2-quart broiler-safe baking dish with nonstick cooking spray.
  3. Bring a large pot of lightly salted water to boiling; add penne.
  4. Cook penne for 6 minutes; drain.
  5. In a large bowl, toss together the cheddar, gruyere and asiago cheeses; set aside.
  6. Meanwhile, in a medium-size saucepan, melt unsalted butter over medium heat; whisk in flour until smooth and slightly bubbly.
  7. In a thin stream, whisk in the milk; stir in onion powder, salt and cayenne pepper.
  8. Bring to a boil over medium-high heat; reduce heat and simmer 3 minutes.
  9. Remove from heat and whisk in 2-1/2 cups of the cheese mixture.
  10. In a pasta pot, stir together the cooked penne and the cheese sauce.
  11. Pour half of mixture into the prepared baking dish.
  12. Sprinkle with a generous cup of the cheese.
  13. Spoon in the remaining penne and top with the remaining cheese sauce.
  14. Bake for 20 minutes.
  15. Increase the oven temperature to broil and cook another 3 minutes or until the top is lightly browned.
  16. Cool slightly before serving.