8ouncesandouille sausage(or other smoked sausage), sliced thinly into quarter moons
1small oniondiced
2ribs celerydiced
1small green bell pepperdiced
2tablespoonsbutter
2tablespoonsall-purpose flour
2cupswhole milk
8ouncesshredded cheese(a blend of Monterey Jack or pepper jack and cheddar is nice)
1tablespooncream cheese
1tablespoonCajun spice blend
1/4cupshredded Parmigiano Reggiano(optional but lovely)
For the breadcrumbs:
1tablespoonmelted butter
1/3cuppanko bread crumbs(seasoned, if possible)
Instructions
Preheat oven to 350ºF
Bring a 2 quart pot of water to boil and cook the macaroni according to package directions (about 7-11 minutes, depending on the brand). Reserve about 1 cup of pasta water, then drain and set aside.
While the pasta cooks, heat 1 tablespoon of olive oil in a 12" oven-safe skillet over medium until the surface shimmers.
Saute the sausage until golden and the edges slightly crispy. Transfer to a paper towel-lined bowl and carefully wipe out the skillet with a wad of paper towels.
Add the remaining olive oil to the skillet and let heat up until shimmering.
Add the onions, celery, and peppers and saute until soft, about 8 minutes. (Note: the pasta should be finishing up. You can stop and drain.)
Scoot the onion mixture to one side and add the 2 tablespoons of butter to the cleared side. Let melt and then spoon the flour onto the butter. Stir to create a paste and allow the flour to darken slightly (2 minutes).
Pour a 1/2 cup of the milk over the flour and stir to thicken. Some of the milk will run into the vegetables; that's okay. Continue pouring 1/2 cups of milk into the skillet and mixing with the flour base until creamy.
Fully mix the creamy roux into the the vegetables.
Add the shredded cheese and cream cheese to the skillet and stir until all is incorporated.
Sprinkle the spice blend over the mixture and stir.
Carefully spoon the cooked pasta into the skillet, along with the cooked sausage. Stir to thoroughly coat the pasta.
Mix the bread crumbs and melted butter together and sprinkle over the surface of the mac and cheese, along with the Parmigiano Reggiano, if using.
Bake for 20 minutes. The mac and cheese around the edges of the skillet should be lightly bubbly.
If the bread crumbs have not turned golden at this point, you can place the skillet under the broiler for a minute or two (keep watch - it can burn quickly!).