I'm not also very good in baking. but sometimes i use my imagination to make use of left overs.
i do baked macaroni, lasagna, cookies, brownies, soft cakes, etc.
one time, i've got lots of toasted loaf bread, decided to cut them in small pieces, poured some milk, added some cheese, raisins and almonds, put inside the oven and the outcome was good. :)