Preheat the oven to 425 degrees F. Lay a piece of parchment paper onto a baking sheet and place the veggies in a single layer. Drizzle with olive oil (~1 teaspoon should work; you don't want the veggies soaking in oil or they won't crisp up, so just enough to lightly cover them) and sprinkle with salt & pepper (and any other desired spices). Roast for 25-30 minutes or until veggies are crisp.