Usually I slice and layer the vegetables, onions on the bottom, eggplant next, then sweet potatoes and the more fun things like pumpkin and mushrooms. Of course it depends on what I have in stock and the mood I'm in. Carrots are always towards the bottom, because they take ages to cook and need the oil.
I'm not one for using salt and pepper in my veggies, just onion and fresh garlic. And I dribble some oil on top and bake uncovered until the vegetables are soft. Take a look!
|#2 Viewed from the side|
|#2 Viewed from above|
|#2 after being baked|