Spicy Sweet Potato Fries

3 large sweet potatoes, cut in wedges
3 tsp olive oil
1 1/2 tsp black pepper
3/4 tsp chili powder
3/4 tsp ground cumin
3/4 tsp paprika
3/4 tsp salt

Toss potato wedges with olive oil. Combine spices and toss with oiled potato wedges. Bake on large baking sheet coated with non-stick spray at 450 degree oven for 12-15 minutes, until brown on outside and soft on inside.