Chicken Tetrazzini



6 ounces fettuccine, preferably spinach
2 teaspoons canola oil
3 leeks, white parts only, washed and finely chopped (1 1/2 cups)
6 ounces button mushrooms, quartered
1 teaspoon chopped fresh rosemary, divided
3 tablespoons all-purpose flour
3 cups reduced-sodium chicken broth
1/2 cup low-fat milk
2 cups cubed cooked chicken breast
Grated zest of 1 lemon
Lemon juice to taste
Salt & freshly ground pepper to taste
1/3 cup freshly grated Parmesan cheese
1/4 cup fine dry breadcrumbs
1 tablespoon finely chopped fresh parsley

1. Preheat oven to 425°F. Coat a 3-quart baking dish cooking spray.
2. Cook fettuccine in boiling salted water until al dente, about 8 minutes. Drain and refresh under cold running water. Drain and set aside.
3. Meanwhile, heat oil in a large skillet over medium heat. Add leeks and cook, stirring, until lightly browned, 6 to 8 minutes. Add mushrooms and 1/2 teaspoon rosemary; cook, stirring, until softened, about 5 minutes. Add flour and cook, stirring, for 1 minute. Add broth and milk; bring to a boil, stirring, until slightly thickened, about 4 minutes more. Remove from heat and stir in chicken. Season with lemon juice, salt and pepper.
4. Gently mix the cooked fettuccine into chicken mixture and spoon into prepared baking dish.
5. Combine Parmesan, breadcrumbs, lemon zest, parsley and the remaining 1/2 teaspoon rosemary in a small bowl. Season with salt and pepper. Sprinkle the mixture over the casserole.
6. Bake casserole for 20 to 30 minutes, or until bubbling. Let stand for 5 minutes before serving.
MAKE AHEAD TIP: Prepare through Step 5. The casserole will keep, covered, in the refrigerator for up to 2 days.

Makes 6 servings