Spicy Herb Grilled Wings with Veggie Chips

Name: Spicy Herb Grilled Wings with Veggie Chips
Ingredients: 1 sweet potato (about 4 ounces), scrubbed; 1 purple potato (about 4 ounces), scrubbed; 2 tablespoons olive oil; Kosher salt and freshly ground black pepper; 1 red beet (about 6 ounces), scrubbed; 1 golden beet (about 6 ounces), scrubbed; 3 tablespoons finely grated Parmesan; 1 sprig fresh rosemary, leaves removed and finely chopped; Olive oil, for frying; 2 sprigs fresh rosemary; 8 fresh sage leaves; 2 teaspoons whole cumin seeds; 2 teaspoons red pepper flakes; 1 teaspoon whole black peppercorns; 2 teaspoons garlic powder; Kosher salt; 2 pounds chicken wings, separated; Serving suggestion: blue cheese dressing