How to Make It
Whisk together balsamic vinegar, pepper, and 1/2 teaspoon of the kosher salt in a small bowl until combined. Gradually add olive oil in a slow, steady stream, whisking constantly until smooth. Stir in basil, and set aside.
Gently toss together cooked tortellini, chicken, tomatoes, peas, corn, and remaining 1/4 teaspoon kosher salt in a large bowl. Gently stir in basil vinaigrette and fold in arugula. Sprinkle with pecans.