Pre heat the oven to 400F.

Place parchment paper on the baking sheet and arrange the pastry sheets on the paper.

Using a fork, make few holes in the pastry sheets. This will avoid the puffing up of the sheets. For better result, place another baking sheet on top of the pastry sheets.

Bake the pastry sheet for about 15 minutes.

In another baking sheet, arrange the vegetables in a uniform layer. Drizzle some oil and season with salt and pepper.

Let the vegetable roast in the oven for 20 minutes.