I have been taking my lasagna recipe and subbing zucchini for the noodles to save calories etc. I just slice the zucchini into coins and cook it until it is about have way cooked. Get rid of as much water as you can. I cook my lasagna sauce down a little bit more than usual too. Just stir it all together and dump it in a casserole with cheese. My family prefers their lasagna made with cottage cheese instead of ricotta. They actually request the zucchini version over the traditional made with noodles.