01 -
Preheat oven to 350°F (177°C). Lightly grease a 9×13-inch casserole dish with cooking spray or a thin coating of oil.
02 -
Bring a large pot of salted water to a boil. Add pasta and cook for 2 minutes less than package directions instruct. Drain and set aside.
03 -
In a large bowl, blend sour cream, salsa, and taco seasoning until smooth and homogenous.
04 -
Add shredded chicken, corn kernels, black beans, and 1 cup of the shredded Mexican cheese blend to the bowl. Stir well until evenly incorporated.
05 -
Add drained pasta to the mixture. Gently fold until pasta is thoroughly coated with the sauce and combined with the other ingredients.
06 -
Transfer the mixture into the prepared casserole dish and spread evenly. Top with the remaining 1 cup shredded Mexican cheese blend.
07 -
Bake uncovered in the preheated oven for 20–25 minutes, or until the cheese topping is bubbly and golden brown.
08 -
Let the casserole rest for 5 minutes before slicing and serving.