My mother clipped this from a magazine in 1965 and never stopped making it. Still the first thing requested at family reunions.

to serve. This is also helpful for kids who prefer more topping in every bite.

Make-ahead tip: Assemble the dish a few hours ahead, cover, and refrigerate. Add an extra 5 to 10 minutes to the baking time if it goes into the oven cold from the refrigerator.

Crunchier topping: If you want a crisper top, place the casserole under the broiler for 1 to 2 minutes at the end, watching closely so the crumbs do not burn.

Serving tip: Let the casserole rest briefly before spooning it onto plates.