This was DELICIOUS! We really enjoyed this different style mac & cheese. I used medium shells, and my kids loved the ricotta cheese in this. I served it just a little differently, because I had company. After assembling the mac & cheese, I poured it all in a 2 qt. casserole dish and spread a whole jar (16 oz.) of heated up Prego spaghetti sauce over the top. Then I spooned out servings like a casserole. Very easy and a definite Keeper in my house! My teenager loved the fact that it was meatless and raved and raved about the flavor. Thanks, firefly68!