Step 4: Lasagna
Top this lasagna first with the remaining sauce from a jar, and then the topping cheese. You do not need to have sauce floating all the way to the top layer.
Cook on low 2-3 hours, or high 60-90 minutes. When done, you should be able to comfortably send a butter knife tip-first through all the layers. We recommend serving by splitting it into wedges and pulling those wedges out with a pair of butter knives.