Boil water in a vessel. Add to this some salt and 1 tsp oil. Add the spaghetti and cook till al dente. Drain the hot water and rinse spaghetti with cold water.
Take a baking dish and brush it with oil.
Assemble the dish by arranging a layer of Spaghetti in a circular shape.
Spread some sauce on the layer of Spaghetti.
Add a layer of cooked veggies on top.
Add another layer of sauce on the veggies and sprinkle some parmesan cheese on top.
Finish with another layer of Spaghetti. Add some cheddar cheese on top.
Bake it in a Preheated oven at 180 deg for 30 minutes.