Prepare pasta according to package directions to a soft texture (Cook a bit longer than al dente). Drain. Set aside.

In a large pot add half and half and butter.

Place pot over medium heat.

When butter has melted, add American cheese, Parmesan cheese and Romano cheese. Cook, stirring frequently to keep cheeses from scorching.

When cheese has completely melted and sauce is smooth, taste. Add salt and pepper, to taste, if needed.

Place pasta into a 9 x 13-inch casserole dish. Spread to an even layer.

Pour prepared cheese sauce over pasta. Mix gently to make sure sauce is fully incorporated.

Spread Cheddar cheese over top in an even layer.

Turn oven on to high broil.

Place pasta in oven. Watch carefully. Cook until Cheddar cheese has melted and is just beginning to brown.

Remove from oven and serve hot.