It seems I left out a couple important details on my recipe yesterday. You're suppose to be able to read my mind evidently. :)
Cook the pasta al dente (about 2 minutes less than usual), it will cook a bit more in the oven.
Bake in a 350 degree oven.
If you make it up the night before and store it in the fridge, allow more time to bake, 45-50 minutes.