I started to panic when I realized I didn't have any spaghetti sauce, but I decided to use a 16 oz. jar of Classico Sun-Dried Tomato Alfredo, and orange and red peppers - WOW! It was soooooooooo good! I'm learning not to be afraid to experiment, and it certainly paid off this time. All the ingredients worked with each other. I don't know if I wanna make it with regular sauce; maybe I'll just try different Alfredo's!