Baked Penne with Chicken, Broccoli and Smoked Mozzarella

Name: Baked Penne with Chicken, Broccoli and Smoked Mozzarella
Prep time: 1 h
Cook time: 20 min
Total time: 1 h 20 min
Cuisine: Italian
Ingredients: 3/4 cup bread crumbs (regular or panko); 2 tablespoons butter (melted); 1 1/2 pounds broccoli (stalks cut off, florets trimmed into 1-inch pieces); 12 ounces penne pasta; 2 tablespoons olive oil; 1 medium onion (minced); 6 garlic cloves (finely minced or pressed through a garlic press); 1/2 teaspoon dried thyme; 1/4 cup all-purpose flour; 2 cups low-sodium chicken broth; 1 cup heavy cream; 1 teaspoon salt; 1/2 teaspoon pepper; 1 1/2 pounds boneless skinless chicken breasts (about 3, trimmed and cut into bite-size pieces); 3 ounces smoked or regular mozzarella (shredded); 8 ounce jar oil-packed sun-dried tomatoes (drained and chopped into pieces)