Cook the 1 pound Penne pasta according to the package directions. Drain and set aside.
In a large skillet, heat the 2 tablespoons olive oil and cook the 1 diced medium onion until tender. Add the 2 minced garlic cloves and 1 diced red pepper and cook for a few more minutes.
Add the 3 cooked and shredded chicken breasts, 1 (4-ounce) can diced green chiles, 2 teaspoon chili powder, 1 teaspoon cumin, ½ teaspoon salt, 2 (10-ounce) cans green chili enchilada sauce, and ⅔ cups red enchilada sauce until heated through.
Add the cooked pasta to the chicken and sauce. Stir in 2 cups shredded cheese until melted, add sour 1 cup sour cream right before serving. Add your favorite toppings and enjoy!