Ingredients 4 boneless skinless chicken breasts about 6 ounces each (1 ½ pounds) ¼ cup flour ½ teaspoon salt ¼ teaspoon freshly ground black pepper 4 tablespoons extra virgin olive oil 4 cups sliced button mushrooms 1 cup sliced red onion 2 tablespoons fresh chopped rosemary 1 tablespoons whole grain mustard 2 tablespoons Dijon mustard […]