Chicken Fajita Pasta

Name: Chicken Fajita Pasta
Ingredients: 1 tablespoon chili powder; 1 teaspoon cumin; Kosher salt; 2 tablespoons olive oil; 1 pound boneless skinless chicken thighs (about 4), cut into 1/2-inch strips; 3 medium red, green or yellow bell peppers, cut into 1/4-inch strips; 1 small yellow onion, halved and thinly sliced; 8 ounces penne (see Cook's Note); 6 ounces cream cheese, cubed; 4 ounces pepper jack cheese, shredded; 3/4 cup crushed tortilla chips; Pico de gallo and sour cream, for serving