Mushroom and Spinach Soup

Mushroom and Spinach Soup Ingredients :

3 tablespoons butter
3 leeks, chopped
2 onions, chopped
2 cloves garlic, minced
2 pounds chopped mushrooms
2 teaspoons dried savory
1/4 teaspoon dried oregano
1/3 cup sherry
9 cups vegetable stock
2 tablespoons tomato paste
1 bay leaf
salt to taste
ground black pepper to taste
10 leaves fresh spinach

Mushroom and Spinach Soup Preparation :

Saute butter, leeks, onion, and garlic until clear. Add mushrooms  savory, oregano, sherry, stock,
tomato paste and bay leaf. Simmer for 30 minutes

Strain out the vegetables.
Stir the reserved mushrooms and spinach leaves into the broth, and cook until spinach is wilted.