5-Ingredient Pesto Chicken Soup

Bahan-bahan (4 porsi)

• 4 cups good-quality chicken stock
• 3 handfuls (about 3 cups) fresh spinach
• 2 cups shredded cooked chicken
• 2 (14 ounce) cans Great Northern or cannellini beans, rinsed and drained
• 1/3 cup pesto
• optional topping: grated Parmesan cheese