Sooner or later, everyone who grows zucchini overlooks one, and by the time it's found, it's thigh-sized. There is a good way to use these monsters, so I'll include recipe (and fervently hope this isn't off topic for the list). spaghetti sauce, about 1 pint 2 oz. finely chopped prosciutto or ham large zucchini 1/2 cup fresh white bread crumbs (French or Italian bread) olive oil about 1/2 cup freshly grated good parmesan cheese (or Asiago) 1/2 cup chopped onions 1/2 teaspoon dried oregano 1/2 teaspoon minced garlic ca. 1 teaspoon salt about 1 lb. lean ground beef about 1/4 teaspoon freshly ground black pepper 1 egg Cut the zucchini in half lengthwise, and scoop out most of the pulp, leaving about 3/4" on bottom and around outside. Sometimes, but not always, I've parboiled this "boat" for a few minutes. Chop the pulp (and seeds). Then heat olive oil in a large skillet, add 1/2 cup chopped onions, and when they're soft and transparent, add the chopped pulp and 1/2 teaspoon minced garlic and cook over moderate heat for about 10 minutes. Scrape all into a sieve balanced on a bowl, so that all can drain. Then brown lean ground beef in a bit of olive oil (I use about 1 lb. of ground beef for a large zucch), stirring thoroughly so there are no lumps. Then drain the browned beef in a sieve over another mixing bowl. Combine beef, onions, pulp and garlic in a large mixing bowl and add a beaten egg, 1/2 cup fresh bread crumbs, two ounces finely chopped prosciutto or ham, 1/2 to 1 teaspoon dried oregano, salt and pepper to taste. Spoon this stuffing into the zucchini shells, mounding the filling, then top with freshly grated good parmesan cheese (at least 1/2 cup) and drizzle with olive oil. Pour spaghetti sauce (homemade or purchased) into the bottom of a large ovenproof pan (a turkey roaster works fine), set the shells on the sauce, and cover top tightly with aluminum foil or the lid of the roaster. Start on top of the stove, then transfer to the middle of the oven and bake for about 45 minutes at 350 degrees, removing foil halfway through so the top can brown slightly, or until the outside shell of the boat is fork tender. To serve, cut into serving portions about 2 inches wide, cutting across the boat's narrow width, and spoon spaghetti sauce over the top. These serving portions with sauce added can be wrapped in foil and frozen. I think this would also work with other large summer squash such as oversized pattypans. This dish is so tasty I have been known to deliberately avoid picking a large zucchini so I could prepare this dish.