1/2teaspoonchili powder,green chile powder if you can find it
Salt and freshly ground black pepper to taste
8ouncescanned or roasted diced green chiles
1cupshredded Monterey jack cheese
1cupshredded pepper jack cheeseor sharp cheddar
1/3cupplain 2% or whole Greek yogurt, optional, but recommended for a creamier consistency.
Instructions
Preheat oven to 325° F.
Bring a pot of salted water to a boil and add in the pasta. Cook 2-3 minutes less than al dente. When the pasta is cooked drain it into a colander.
In a 10-12" oven safe skillet, melt the butter over medium heat. Add in the flour and dried spices and whisk together until a paste forms. Let it cook for about a minute. Slowly whisk in the milk until the sauce is smooth. Add in the diced green chiles and season with salt and pepper.
Continue whisking until the sauce has thickened, about 3-4 minutes. Remove the skillet from the heat and whisk in the Greek yogurt if you're using it. Add in 1 1/2 cups of the cheese and whisk until it's melted and incorporated into the sauce. Add the pasta into the skillet and stir until it's completely covered in the sauce.
Top with the remaining cheese and then bake uncovered for 20 minutes. Switch the oven to broil and bake until the top is browned and crisp.