I saw this recipe on Rachel Ray, and it sounded like a good idea. I made the mac and cheese and then filled my soup cups, layering corned beef for my roommate, and fake steak strips for me. I've seen recipes for brined seitan, but I'm lazy :P
1 pound cavatappi, hallow corkscrew shaped pasta or, other short cut
2 slices rye bread
3 tablespoons butter plus some for buttering toast
A handful fresh parsley leaves
1 teaspoon paprika
3 tablespoons all-purpose flour
2 cups milk
1/4 cup spicy brown deli mustard (recommended: Gulden's)
1 cup shredded Swiss cheese
1 cup shredded Gruyere
1 cup shredded yellow Cheddar
3/4 pound good quality deli corned beef, sliced as thick as bacon, chopped
1 pound sauerkraut, rinsed and well drained
Bring a large pot of water to a boil for the pasta. Salt water and cook pasta to al dente.
While pasta cooks, toast rye bread in toaster then butter hot bread. Coarsely chop bread and place in food processor. Add parsley and paprika to bread and process into bread crumbs, reserve.
Heat a sauce pot over medium heat. Add butter to pot and melt, whisk in flour 1 minute then milk. Season the sauce with salt and pepper, thicken sauce 5 to 6 minutes then stir in mustard. Melt 2/3 of the combined cheeses into the sauce.
Drain pasta and return to hot pot. Toss hot pasta with chopped meat and sauerkraut to combine, stir in cheese sauce and coat. Transfer mac n cheese to casserole and top with bread crumbs and remaining cheese. Brown under broiler 3 to 4 minutes, serve.