Mushroom Soup with Fennel and Parmesan Toasts

Name: Mushroom Soup with Fennel and Parmesan Toasts.
Ingredients: For the Soup; 1 Fennel Bulb, thinly sliced; 8 ounces cremini mushrooms, washed and roughly chopped; 1/2 onion, finely chopped; 2 tablespoons olive oil; 2 cloves garlic, minced; 5 cups chicken stock; For the Croutons; 12 thin slices baguette; 1/3 cup parmesan cheese, freshly grated; 1 tablespoon olive oil; Additional parmesan to serve