Reuben Casserole

Preheat oven to 350 degrees F. Coat a 2-quart (7-by-11-inch) baking dish with cooking spray. Heat 1 tablespoon oil in a large nonstick skillet over medium-high heat. Add cabbage, onion and salt; cook, stirring often, until the cabbage wilts and the cabbage and onion begin to brown, about 5 minutes. Stir in vinegar and remove from heat. Transfer the mixture to the prepared baking dish.

Sprinkle one-third of the cheese evenly over the cabbage mixture; sprinkle with pickle, then turkey, then another third of the cheese. Stir together mayonnaise and ketchup in a small bowl; spread over the top cheese layer. Sprinkle with the remaining cheese.

Pulse bread in a food processor until coarse breadcrumbs form. Toss the breadcrumbs and the remaining 2 tablespoons oil in a small bowl; sprinkle over the top cheese layer.

Bake the casserole until it's hot throughout, the cheese is melted and the breadcrumbs are light golden brown, about 20 minutes. Serve hot.