Reuben with bread

salt 1 lb cavatappi pasta , hallow corkscrew shaped pasta or, other short cut 2 slices rye bread 3 tablespoons butter , plus some butter , for buttering toast[...]

3/4 cup cubed rye bread 2 (10 1/2 ounce) cans cream of mushroom soup 1 1/2 cups milk 1/2 cup finely chopped onion 3/4 lb deli sliced corned beef , chopped or[...]