• Cook pasta according to package directions; drain, reserving 1/3 cup cooking liquid.
• Meanwhile, in large pot of boiling salted water, cook potatoes for 6 minutes. Stir in green beans; cook for 4 to 5 minutes or until potatoes and beans are tender. Drain well.
• Toss together pesto, pasta and reserved cooking liquid. Add potatoes, green beans and half of the basil, tossing well. Sprinkle with Pecorino and remaining basil. Drizzle with olive oil.

Tip: Use French green beans if desired.