
2 (6- to 8-ounce) skinless, boneless chicken breast halves
½ teaspoon seasoning salt
2 tablespoons water
2 sprigs fresh rosemary
1 tablespoon all-purpose flour
1 tablespoon olive oil
1 teaspoon unsalted butter
2 (8-inch) French baguettes, split
4 tablespoons Classic Pesto Genovese or Basil Pesto
2 tablespoons sun-dried tomatoes in oil, drained
½ cup lightly packed baby arugula