For the colorful vegetable casserole, first wash the vegetables and cut them into very thin slices, preferably with a peeler. Preheat the oven to 180 °C top and bottom heat. Brush a quiche dish with olive oil and place the vegetable slices in it.
Mix all ingredients for the glaze in a stand mixer, season to taste and spread evenly over the vegetables. Bake the colorful vegetable casserole for about 45 minutes, until the surface begins to brown.
Preparation Tip:
Of course, you can also dice the vegetables for the colorful vegetable casserole small, or grate, but then the casserole does not look so pretty.