Penne Pasta:

1 lb penne pasta

Chicken:

1 lb boneless, skinless chicken breast, cut into bite-sized pieces

Seasoning:

2 tbsp olive oil, divided, 1 1⁄2 tsp Cajun seasoning

Vegetables:

1 red bell pepper, sliced, 1 green bell pepper, sliced, 1⁄2 red onion, sliced, 3 cloves garlic, minced, 2-3 jalapeño peppers, sliced (remove seeds for less heat)

Sauce:

4 tbsp butter, 1⁄4 cup all-purpose flour, 2 cups milk or half-and-half, 1 cup grated Parmesan cheese, 1⁄2 tsp salt, 1⁄4 tsp black pepper, 1⁄4 cup chopped fresh parsley