1 onion, sliced
2 cloves garlic, minced (optional)
2 large carrots, peeled and diced
2 large sweet potatoes, peeled and diced
1 (15 ounce) can garbanzo beans, drained and rinsed
2 pounds skinless, boneless chicken breast halves, cut into 2-inch pieces
1/2 teaspoon ground cumin
1/2 teaspoon ground turmeric
1/4 teaspoon ground cinnamon
1/2 teaspoon ground black pepper
1 teaspoon dried parsley
1 teaspoon salt
1 (14.5 ounce) can diced tomatoes