Turkey-Tomato Stew with Onions and Raisins

Name: Turkey-Tomato Stew with Onions and Raisins
Yield: 6 Servings
Ingredients: 6 tablespoons olive oil; 4 cups chopped onions; 3 cups 1/2-inch pieces cooked turkey (preferably dark meat); 1 1/2 tablespoons chili powder; 1 tablespoon pumpkin spice pie; 2 14.5-ounce cans dieced tomatoes with green peppers; 1 cup water; 2/3 cup raisins; 1/4 cup apple cider vinegar