To prepare a taste of provence veggie smich w grilled sweet tato chips barbeque recipe, you'll first need to prepare the sweet potato chips. Cut sweet potatoes in half lengthwise and scoop out the seeds. Toss with olive oil and season with salt and pepper. Spread the mixture evenly on the baking sheet. Bake in the preheated oven for 20 minutes. Remove from the oven and allow to cool.