Healthy Broccoli Soup

Name: Healthy Broccoli Soup
Ingredients: 1 onion; 2 celery stalks; 2 garlic cloves; 1 cup white wine; 2 cups stock (chicken is best, but veggie works too); 12 oz broccoli, stems and florets seperated (about 1 1/2 heads); 1/4 cup cheese (optional); 2 tablespoons butter (optional); 1 cup spinach (optional); to taste Salt & Pepper