Not layering properly

It's time to assemble your lasagna once the noodles, sauce, and filling are prepared, and yes, there is a proper method to assemble the lasagna. You should first coat the bottom of the pan with a little olive oil and sauce (via Today). Oil and sauce prevent the bottom of the lasagna from browning and adhering to the baking dish during the roughly 45 minutes it will spend in the oven.

Add your first layer of noodles once you've completed the foundation layer. Add another layer of noodles and your filling after covering the noodles with some sauce and cheese. Without drowning it, add a dash of sauce to each layer. When serving, you can always add more sauce, but you can never take away too much. Make additional sauce if you are worried that the lasagna will be too dry or if you want more for dipping. Your future self, who will enjoy lasagna, will appreciate you doing this especially when you serve leftover lasagna.