Spinach and Black Bean Pasta

INGREDIENTS

• 1 (16 ounce) package whole wheat rotini pasta
• 1 1/2 cups vegetable broth
• 2 1/2 cups chopped fresh spinach
• 1/2 cup chopped red onion
• 1 clove garlic, chopped
• 1/2 teaspoon cayenne pepper
• salt and pepper to taste
• 1 (15 ounce) can black beans, drained and rinsed
• 1 cup frozen chopped broccoli
• 1 cup diced tomatoes
• 2 ounces freshly grated Parmesan cheese