I have only had this at a restaurant once at a place in Louisville called The Old Spaghetti Factory. It was so good, I stuffed myself bigger than the Manicotti! So, I came home and started playing around with a couple of recipes and this resulted. I think it's a delicious alternative to the heavy tomato sauce that's usually on Manicotti for the veggie-worshipers, there's no meat. Serve with a green salad and some garlic bread for a delicious meal. Looks like a lot of work, but it's really not and goes fairly quick. WELL WORTH IT!