I have been making a version of this for over 15 years that I call bagel pizza. I take the bagel-plain, everything, or sesame and put spaghetti sauce on it (I always have this on hand) and whatever chesse-mozzerella, chedar or even jack chesse is good and it I have onion or pepper is good too. My husband loves this and it makes for an easy supper if you don't have any frozen pizza at home or want go out to get one. I make it for lunch too. YUMMY!!