creamy tortellini spinach soup

Ingredients

• 1 package cheese tortellini/12 ounces frozen
• 1 package spinach, fresh,torn leaves only
• 1 package mushrooms, fresh,sliced
• 1 medium shallots,minced
• 2 cloves garlic,minced
• 6 cups chicken stock
• 1 pinch salt and pepper
• 1 pinch cayenne pepper
• 1 pinch oregano, dried
• 2 tablespoons basil, dried
• 1 pint milk.whole
• 4 tablespoons roux,(more if needed)
• 2 tablespoons black pepper,cracked(optional)
• 1 cup parmigiano-reggiano, grated(optional)
• 2 tablespoons butter