my aunt's recipe for ratatouille

"The ratatouille is really simple, using your favourite veggies, butter the bottom of your baking dish, layer sliced squash, zucchini, onion, tomato, sprinkle parmesan cheese and small pieces of butter, salt, and pepper and any other spice you like in between layers at your discretion. I think I topped the final layer with the parmesan and spices and butter. Bake at 350 for approx. 40-60 min. until it is bubbly and has your olfactory lobes enticed !!!! You'll know when it's done."