Warm Vegetable Curry

Name: Warm Vegetable Curry
Ingredients: 2 cups sweet potato (peeled) cut into 1/3 inch dice; 2 cups chopped cauliflower florets - cut into 1/2 to 1 inch chunks; 1 large onion, sliced; 1/2 teaspoon cinnamon; 1 teaspoon cumin; 1/2 teaspoon fennel seeds; 1 tablespoon fresh ginger, peeled and minced; 1 15 oz can garbanzo beans, drained; 1 large tomato, chopped; 1 14 oz can tomato sauce; 1 teaspoon kosher salt; 1 cup frozen peas; 1/3 cup cilantro, chopped; 1/2 cup 2% greek yogurt; 1 tablespoon olive oil; 1/8 teaspoon red pepper flakes; 2 tablespoons curry powder; 1/2 cup vegetable broth