Preheat oven to 375 degrees F. Line a baking sheet with parchment paper. Cut the potatoes in half lengthwise, and then cut each half into 4 to 6 long wedges and place in a bowl. Add the oil, chili powder, cumin, Tabasco and salt and toss to coat the potatoes. Place the potatoes in a single layer on the baking sheet and roast 40 minutes, turning once halfway through cooking to ensure even browning. Arrange the potatoes on a large serving platter; sprinkle with the parmesan and parsley and serve.