Broccoli, cheese, chicken, and quinoa casserole

Name: Broccoli, cheese, chicken, and quinoa casserole
Prep time: 10 min
Cook time: 50 min
Total time: 1 h
Cuisine: American
Ingredients: 1 cup uncooked quinoa , rinsed*; 1 bag (16-ounces) broccoli florets; 1 tablespoon olive oil; 2 to 3 boneless skinless chicken breasts , cut into cubes; salt and fresh ground pepper , to taste; 1 cup chicken broth; 1/2- cup all purpose flour; 2 cups 1%-milk