2 pounds fingerling potatoes
1 pound mixed baby summer squash
4 large shallots (thinly sliced)
4 cloves garlic (minced)
2 tablespoons Dijon mustard
1/2 teaspoon salt
  Freshly ground black pepper (to taste)
3 tablespoons sherry wine vinegar or balsamic vinegar
1/2 cup olive oil
5 ounces Earthbound Farm Organic Baby Arugula