Place potatoes in a greased 9x9x2-inch baking pan. In a small bowl combine oil, onion powder, salt, pepper, paprika, and garlic. Drizzle oil mixture drizzle over potatoes, tossing to coat. Roast, uncovered, in a 325 degrees F oven for 45 minutes. Stir potatoes; bake for 10 to 20 minutes more or until potatoes are tender and brown on the edges.