Squash and Sweet Potato Croquettes

Name: Squash and Sweet Potato Croquettes
Ingredients: 1 tablespoon olive oil; 1 small onion, diced; 4 ounces sweet potato, diced; 1 cup cooked winter squash (or sub more sweet potato); 1/2 cup cooked chickpeas; 1 dash hot sauce (optional); 1 dash turmeric; 1/2 teaspoon ground cumin; 1/2 teaspoon salt; 1 teaspoon finely minced ginger root; 1 tablespoon flour; 2 tablespoons yogurt, for serving