Falafel Pita Sandwich

Name: Falafel Pita Sandwich
Prep time: 40 min
Cook time: 10 min
Total time: 50 min
Cuisine: Middle Eastern
Ingredients: 2 cups dried chickpeas; 4 garlic cloves (finely chopped); 1 small onion ( finely chopped); 1 cup broccoli florets; 3/4 cups fresh coriander (chopped); 1/2 cup parsley (chopped); 1 teaspoon coriander powder; 1 teaspoon cumin powder; 1 teaspoon black pepper; 1 teaspoon salt (add more to taste); Pita bread; Hummus; 1 large tomato; 1/2 cucumber; Green or black olives; Sambal or hot sauce (optional)