Cajun Chicken Mac and Cheese

Name: Cajun Chicken Mac and Cheese
Ingredients: 1 1/2 Lb boneless skinless chicken breasts (cut into bite-sized pieces); 2 Tbsp Cajun seasoning; 1 Tbsp vegetable oil; 3 clove garlic (minced); 1 medium green bell pepper (diced); 1 medium red bell pepper (diced); 4 Tbsp unsalted butter; 2 Tbsp all-purpose flour; 1 1/2 C chicken broth; 2 1/2 C whole milk; 1 Lb elbow macaroni; 1 C Velveeta (cubed); 1 C sharp cheddar cheese (shredded); 1 Tsp kosher salt (to taste); 1 Tsp black pepper (freshly cracked); 1/2 Tsp smoked paprika