
Ingredients:
- 5 tablespoons olive oil, divided
- 1 tablespoon balsamic vinegar
- 1 tablespoon chopped shallot
- 1 teaspoon Dijon mustard
- 0.5 teaspoon salt, or more to taste
- 4 peaches, halved and pitted
- 4 skinless, boneless chicken breast halves
- 8 cups baby arugula
