Try this hearty soup packed with leafy greens, sweet onions and chicken sausage. When you choose the chicken sausage, look for one that is has either maple or apple. The sweeter sausage works so well with the savory base of this soup.
1. Heat olive oil and butter in a large pot over medium heat. Add onions and cook until translucent, about 3 minutes. Add garlic, red pepper flakes and chicken sausage then cook until the sausage begins to brown, about 2 minutes.
2. Add potatoes, tomatoes and stock. Bring to a simmer and cook 5 minutes then add kale and cook another 10 minutes until wilted and the potatoes are tender.
3. Remove from heat, add milk and stir in fresh spinach leaves.
Season to taste with salt and/or pepper then serve immediately.