3/4 pound sweet potatoes, boiled until just under completely tender
1 1/2 teaspoons chili powder
1/2 teaspoon salt
1/4 teaspoon ground cumin
Preheat oven to 425°. Cut 3/4 pound cooked sweet potatoes into 1/4-inch-thick slices; set aside. Mix 1 tablespoon water, 1 1/2 teaspoons chili powder, 1/2 teaspoon salt, and 1/4 teaspoon ground cumin. Add sweet potatoes; toss gently to coat. Cover a lightly oiled nonstick baking sheet with a single layer of potatoes; roast, turning once, until golden and tender (about 20 minutes). Serve with a ranch type dressing.