The flavors of three different cheeses blend nicely and put a tasty twist on traditional macaroni and cheese. This came from Taste Of Home Simple & Delicious. I have not tried this, just posting for easy finding.
Cook macaroni according to package directions; drain. Place in a greased 2 1/2-quart baking dish.
In saucepan, melt 4 tablespoons butter. Stir in flour, salt and sugar until smooth. Gradually stir in milk. Bring to a boil; cook and stir for 2 minutes or until thickened.
Reduce heat; stir in american cheese until melted. Stir in cottage cheese and sour cream. Pour over macaroni. Sprinkle with cheddar cheese. Melt remaining butter and toss with bread crumbs; sprinkle over top. Bake, uncovered, at 350 for 30 minutes or until golden brown.