Ingredients

  • 1 pound cavatappi (a curly macaroni) or your choice of pasta
  • 3/4 cup (1 1/2 sticks) unsalted butter
  • 6 tablespoons all-purpose flour
  • 4 cups hot whole milk
  • 2 teaspoons Tabasco sauce
  • 1 tablespoon dry mustard
  • 1 teaspoon kosher salt
  • 1/2 teaspoon ground white pepper
  • 2 cups shredded chipotle Cheddar cheese (preferably Cabot), about 8 ounces
  • 3 cups shredded extra-sharp Cheddar cheese (about 12 ounces)
  • 3 cups shredded Monterey Jack cheese (about 12 ounces)
  • 10 green tomatoes (4 to 5 pounds), cored and thinly sliced
  • 2 cups sourdough breadcrumbs (see Tip below)

Method

  • Preheat the oven to 350F.
  • Grease a 9 by 13-inch pan or casserole dish of similar capacity with cooking spray.
  • In a large pot, cook the pasta in plenty of hot water according to package directions, but remove it a few minutes earlier than suggested so it doesnt turn mushy when baked later.
  • Drain the cooked pasta in a colander and hold under cold running water to stop it from cooking further.
  • Set aside.
  • In a large saucepan set over medium heat, melt 1/2 cup of the butter.
  • Add the flour, stirring constantly until the mixture is smooth and golden brown, about 5 minutes.
  • Slowly pour in the milk, whisking constantly until thick, about 2 minutes.
  • Stir in the Tabasco, dry mustard, salt, and white pepper.
  • Stir in the cheeses and cook until they are completely melted.
  • Spoon half the cooked pasta into the prepared pan.
  • Cover with half the cheese sauce.
  • Arrange a single layer of sliced tomatoes on top.
  • Spoon the remainder of the pasta on top; pour on the remainder of the cheese sauce.
  • Top with a second layer of sliced tomatoes.
  • In a large skillet set over medium heat, melt the remaining 1/4 cup butter.
  • Stir in the breadcrumbs and cook until the crumbs are evenly coated with butter.
  • Spoon the crumbs evenly over the top of the tomatoes.
  • Bake for 30 minutes, or until the crumbs have turned golden and the casserole is bubbling.
  • Serve hot.
  • The casserole can be assembled a day in advance, covered, and refrigerated.
  • Make the breadcrumbs, too, but dont add them to the casserole until ready to bake and serve.
  • Bake just before serving.
  • Add extra baking time if the casserole goes from refrigerator to oven.
  • Its easy to make homemade breadcrumbs: toast 3 or 4 slices of sourdough bread until golden brown.
  • Let the toast cool for a few minutes.
  • Tear the toast into small pieces and process into crumbs in a food processor or blender.