This is one of our favorite baked mac & cheese recipes! You sure can't go wrong with this much cheesiness. :)
1 pkg. (16 oz) spiral pasta (or whatever pasta you have on hand)
1 1/2 C (12 oz) sour cream
1 1/2 C (12 oz) small-curd cottage cheese
1 lb. process American cheese, cubed
2 C shredded cheddar cheese
Cook pasta according to package directions. Meanwhile, in a blender, combine the egg, sour cream and cottage cheese; process until smooth. Transfer to a large bowl; add American & cheddar cheeses. Drain pasta; stir into cheese mixture until evenly coated.
Transfer to a greased shallow 3 qt. baking dish. Bake uncovered, at 350 degrees for 15 minutes; stir. Bake 15-20 min. longer or until bubbly and edges begin to brown. Yield: 8-10 servings