Turkey Tetrazzini a la Stouffer's

1 . Stage

Preheat the oven to 325 degrees F (165 degrees C). Grease a casserole dish with 2 teaspoons of butter.

2 . Stage

Bring a large pot of lightly salted water to a boil. Cook angel hair in boiling water, occasionally stirring until cooked through but firm to the bite, 4 to 5 minutes. Drain.

3 . Stage

Melt 2 tablespoons butter in a large pot over medium heat; cook and stir celery until it begins to soften, 1 minute. Stir mushrooms into celery; cook and stir until mushrooms are softened, 3 minutes more.

4 . Stage

Remove vegetables from skillet; melt remaining 2 tablespoons butter and whisk flour into hot butter to make a paste. Slowly whisk chicken broth and bring to a simmer; reduce heat to low and cook, constantly whisking, until sauce is thickened. Mix in cream, sherry, salt, and white pepper.

5 . Stage

Fold turkey, celery, and mushrooms into sauce; mix in angel hair pasta. Transfer mixture to the prepared casserole dish and sprinkle panko crumbs on top.

6 . Stage

Bake in the preheated oven until sauce is bubbling and crumb topping has browned, about 30 minutes.