This is not so much a recipe as a technique for using the zucchini in place of noodles. Here's how it went: First, a giant zucchini. I've placed the regular-sized jar of spaghetti sauce next to it so you can see how bit the monster is. To the left you can see a little bit of the biggest knife I own. It, too, is huge.
Ah, the giant knife and a strainer-full of zucchini "noodles". If you click on the photo to enlarge you'll see the kosher salt I sprinkled liberally all over them. This draws out the water, thus the strainer. I only left these about 15 minutes - next time I'll prepare them earlier in the day and let them drain lots longer. The finished product was still a bet wet.
Here I have rinsed the salt from the noodles and am patting them dry. See how perfectly sliced they are? No? Well, neither are my fingers, which is what would have happened had I striven for perfection. Believe me. I have scars to prove it.
Ah, the final layer. Here is where you just use your favorite lasagna recipe and assemble as instructed, though obviously using the zucchini instead of pasta.