I made this dish for my boyfriend & I on 3 occasions and it came out DELICIOUSO !!!! I prefer to use fresh spinach and mushrooms which I saute in a little olive oil and I prefer to purchase spicy fresh Italian sausage & Locatelli Pecorino Romano cheese from my local Italian store in my neighborhood. I also use low-fat shredded mozzarella cheese & low-fat ricotta cheese but I use regular lasagna noodles. It comes out PERFECT every single time I make it!! :-) :-) My boyfriend especially loves the leftovers the next day. Thank you for this recipe!!!!