"This baked dish is the result of playing around in the kitchen one day and merging two beloved cheesy dishes: chiles rellenos and pasta al forno. It's creamy with some heat and tang, but nothing overwhelming. Still, if you prefer a more standard penne, omit the chiles. For a smoky note, consider using fire-roasted canned tomatoes in place of the regular ones. You can also play with the cheeses...."