This makes a delicious entree served with a salad and garlic bread.
The ingredient list hides the physical reality of the squash. Eggplant acts like a dense sponge filled with bitter moisture. Without drawing that water out first, oil stays on the surface rather than penetrating the pan, and the final dish turns into mush.
Most casseroles taste better on the second day, but this dish undergoes a radical structural shift overnight. Starches in the pasta sauce retrograde. Excess moisture from the ricotta reabsorbs into the surrounding crumb, tightening the layers. When cold slices are reheated at 350 degrees F for twenty minutes, the cheese lipids separate and re-emulsify rather than simply melting. The interior firms up into distinct strata instead of sliding apart on the plate. Portioning yields for larger groups is straightforward. Doubling the quantities requires moving from a single 9x13 inch baking dish to two pans to maintain proper thermal penetration, while halving requires reducing the bake time by ten minutes to prevent scorching the edges.