One-Dish Chicken Pasta

Prepare pasta according to package directions. Meanwhile, melt 2 Tbsp. butter in a Dutch oven over medium heat.

Add onion and bell pepper; saut 5 minutes or until tender.

Add mushrooms; saut 4 minutes.

Remove from Dutch oven.

Melt remaining 3 Tbsp. butter in Dutch oven over low heat; whisk in flour until smooth. Cook, whisking constantly, 1 minute. Gradually whisk in chicken broth and milk; cook over medium heat, whisking constantly, 5 to 7 minutes or until thickened and bubbly.

Stir chicken, sauted vegetables, and hot cooked pasta into sauce.

Add cheese, pepper, and salt.

Serve with desired toppings.