Poke holes in potatoes with a fork or knife. Place on a plate or dish and microwave 8-10 minutes, until tender.
Slice and stuff immediately, or allow to cool and store in the fridge for later.
To assemble taco stuffed sweet potatoes
In a large mixing bowl, combine beans, corn, tomatoes, green onion, cilantro, lime juice, cumin, chili powder, and salt. Mix well.
Slice cooked sweet potato in half lengthwise and fill with vegetarian taco mixture. Top with cheese and microwave 2-3 minutes.
Top with sour cream (or whatever toppings you like), serve, and enjoy!
Yields 4 taco stuffed sweet potatoes.