Question: can you use ketchup instead of tomato paste in sloppy joes?
Answer: Sloppy Joes can be served again the next day if you add a bit of liquid to help create a bit more sloppy joe sauce. ... If you would like to swap the ketchup for tomato sauce or tomato paste, just play with the rest of the ingredients to increase the sweetness more as the ketchup adds a definite sweet flavor.