Simple, colorful, and healthy, this salad makes a lovely accompaniment to any picnic or barbecue.
Cook the beans in the stock until tender. Drain well and place in a medium bowl.
Scrape the kernels off the corn cobs and add to the beans. It's not necessary to cook the corn if it's sweet and tender.
Drizzle 1/4 cup of the olive oil over the beans and corn, and season to taste with salt and pepper.
Make a simple vinaigrette by whisking the remaining 1/4 cup olive oil with the vinegar.
Place the arugula in a bowl and toss with the dressing. Divide the greens between 4 plates. Top each serving with some of the corn and bean mixture.
Using a vegetable peeler, shave ribbons of parmesan cheese onto the salads. Serve immediately.