From YavelWiki

Ingredients

• 8 oz pasta shells
• 12 oz broccoli florets
• 1 pound chicken breast, cooked and cut into bite sized pieces
• 2 tablespoons butter
• ¼ cup flour
• 2 cups milk
• 2 cups grated sharp cheddar cheese
• ½ teaspoon onion powder
• ½ teaspoon garlic powder
• salt and pepper to taste

Instructions

1. In a large pot bring water to a boil and add the pasta. Cook according to package directions. Add the broccoli to the boiling water the last 3 minutes of cooking. Drain and set aside.

2. In the same pot, add the butter and melt over medium heat. Whisk in the flour and cook for about a minute to create a roux. Slowly whisk in the milk and cheese and bring to a boil over medium high heat until it starts to thicken.

3. Add in pasta shells, broccoli, and chicken and toss to coat in the sauce.

4. Serve immediately.