If you're looking for a meatless option, this vegetarian sweet and sour chicken recipe is perfect. Instead of chicken, tofu or tempeh is used as a protein source. The tofu or tempeh is coated in a crispy batter and fried until golden brown. The sauce is made with a combination of vinegar, ketchup, and other seasonings, creating a tangy and sweet glaze. Serve it over steamed rice or noodles for a satisfying vegetarian meal.