Slow Cooker Turkey Vegetable Soup

Bahan-bahan (4 porsi)

• ½ onion (diced)
• 2 tablespoons butter
• 6 cups turkey broth (or chicken broth)
• 2 cups cooked chopped turkey (or chicken)
• 14.5 ounces canned diced tomatoes (with juice)
• 2 medium carrots (sliced)
• 2 ribs celery (sliced)
• ½ cup frozen corn kernels (thawed)
• ½ cup frozen peas (thawed)
• 1 small potato (peeled and cut into ½-inch cubes)
• ½ teaspoon poultry seasoning
• ½ teaspoon dried basil
• 2 teaspoons chopped fresh parsley