Teriyaki tofu skewers are a great vegetarian alternative to traditional meat skewers. Cut firm tofu into cubes and marinate them in a homemade teriyaki sauce made with soy sauce, ginger, garlic, and brown sugar. Thread the tofu cubes onto skewers along with your favorite vegetables like bell peppers, onions, and pineapple. Grill the skewers until the tofu is golden brown and the vegetables are tender. Serve these delicious skewers over a bed of steamed rice for a satisfying dinner.