My favourite thing to make with the leftover ingredients from a white lasagna is a white pizza.
I’m assuming that you already have a recipe for a pizza dough that you hang with a magnet on your refrigerator. No? Then I must recommend that you use Betty Crocker’s basic pizza dough recipe. (Note: I am not paid in any way, shape or form by Betty Crocker. I just really like the fact that her bread, cookie and pizza dough recipes always turn out right the first time.)
That was easy!