Overloading the layers
With lasagna, "more is better" is not a good strategy. Yes, a good lasagna includes layers, but using an overloaded pan and adding too many layers can result in disaster. The number of layers of lasagna is usually three or four, and the proportions of the filling, sauce, and noodles are always the same. Lasagne soup is the result of too much sauce. Too many noodles ruin the texture, and too much filling overwhelms the palate with flavor. A good lasagna must have a balance of flavors and textures so that each bite contains all of the components without any one of them taking center stage.
It's easy to maintain balance in lasagna by adhering to the maxim "less is more" and avoiding overstuffed layers. Even though some restaurants claim to have 15 layers of lasagna, they use fresh, paper-thin noodles that keep the dish balanced despite the number of layers. The majority of home cooks use thicker store-bought noodles, and stuffing a lasagna too full will make it taste terrible.