Cook the manicotti noodles and set aside. In a large bowl, combine all ingredients. Using a pastry bag, fill the noodles. Place in a large casserole dish.
Sauce: Place all ingredients in saucepan and simmer for 30 45 minutes. Transfer to blender and blend. Strain the sauce through a fine mesh strainer. Pour the sauce over the manicotti and top with parmesan. Bake at 160ºC or 45 minutes.