This lamb sausage bolognese is a quick yet classy version of the classic pasta sauce.   Ingredients 12 oz. lamb merguez sausage, removed from casing. 2 onions, diced 2 carrots, diced 2 celery stalks, diced 3 cloves garlic, minced 24 oz. can crushed tomatoes 2/3 cup parmigiano reggiano, grated ½ cup fresh basil leaves, chopped …