Mustard-Agave Chicken Breasts

Ingredients

• 1 1/2 pounds skinless, boneless chicken breasts
• 1/4 teaspoon salt
• 1/4 teaspoon pepper
• 1 tablespoon olive oil
• 1/4 cup low-sodium chicken broth, vegetable broth, or white wine
• 1/4 cup Dijon mustard
• 3 tablespoons agave nectar
• 2 heads broccoli florets (8 ounces)
• 1/2 onion, cut into half moons
• 1 red bell pepper, cut into 1 1/2-inch strips (optional)