In 12-inch nonstick skillet, heat oil over medium-high heat. Add polenta slices; cook 12 minutes, turning once, until lightly browned and crisp.
In small microwavable bowl, microwave pesto on Medium (50%) 1 minute or until thoroughly heated. Spread pesto evenly over polenta rounds. Sprinkle evenly with basil, cheese and pine nuts. Serve immediately.