Easy Chicken with greens

2 tablespoons all-purpose flour 1/4 teaspoon dried sage 1/4 teaspoon dried thyme , crushed 1/8 teaspoon pepper 1 1/4 cups chicken broth 1 tablespoon dried[...]

3 tablespoons butter 1 large onion , diced 1 cup diced carrot 1 bell pepper , diced (red or green) 2 stalks celery , diced (optional) 3 tablespoons flour 1[...]