Preheat the oven to 350°F.
Cook the rice as per the package directions.
Using a microwave or stove, steam the veggies until they are tender.
Meanwhile, strain the tofu and tempeh, then cut them into cubes as well.
In a saucepan, add the tamari, maple syrup, ginger, and garlic. Cook for 1-2 minutes.
In a mixing bowl, mix the cornstarch and water. Add to the teriyaki mixture and cook for 2-3 minutes, or until smooth.
Remove them from the heat and set them aside. Adjust to taste if needed.
In a baking dish, add the prepared tofu and tempeh, drizzle with teriyaki sauce, and bake for 21–25 minutes at 350°F.
Once the tofu & tempeh is cooked, transfer them into a casserole and combine it with the steamed veggies and cooked rice.
Place the casserole in a preheated oven and bake for at least 15-20 minutes, uncovered.
If desired, sprinkle with sesame seeds.