Ratouille is a classic French vegetable stew of aubergines, peppers, courgette, onions and tomatoes, served as a side dish or with pasta.
I’ve tried a number of recipes for ratatouille over the years. Some insist that each vegetable is cooked separately before being layered together, but I’ve found that to be an unnecessary amount of faff.
The main thing is to cook the vegetables in the correct order, avoid overcooking, keep the seasonings simple, and allow the ratatouille to rest before eating at room temperature (or reheating).