Beefy taco filling takes these zucchini boats to a new level. The filling for these stuffed zucchini halves is a seasoned ground beef taco mixture. Top the zucchini off with shredded pepper jack cheese or a mexican blend of cheeses, along with a drizzling of taco sauce and serve them with your favorite garnishes. Serve the zucchini with cauliflower "Rice" If you're low-carbing it, or add easy mexican-style rice or plain boiled rice. Refried beans make a delicious side dish as well.