This is of general interest, so I'll post it. I, too, was recently given a giant zucchini, big enough to effectively bludgeon someone. (ironically enough, I got it in a butcher shop my dad dragged me in to.) I sliced it in half horizontally, scooped out the seeds, and stuffed it with cooked rice and lentils and baked it. Put some lentils in a pot with water and boil them until barely soft. Throw in some rice and cook until barely done, using as little water as possible. Meanwhile, sautee some celery, onion and garlic (not too much garlic.) and add that to the rice and lentils, along with some ground cumin and thyme. Throw it on the zucchini and bake at around 350 or 400 until the zucchini is soft. The surface of the stuffing will probably get burned and dried out, but you van just brush it aside.