Preheat oven to 400F
Carefully pierce a dotted line all the way around the spaghetti squash with a small, sharp knife.
Microwave the squash for 4-6 minutes. Let cool, then easily slice through the dotted lines to cut it in half.
Drizzle the olive oil on each half of the squash, then sprinkle on the salt, chili powder and cumin.
Turn both halves upside down on a baking sheet lined in foil. Bake for 30-40 minutes, until tender. (You will be able to easily pierce with a fork.)
While the squash is baking, brown the beef. Drain before adding the taco seasoning.
Once the squash is cooked and slightly cooled, scrape the insides with a fork.
This will loosen the 'noodles'.
Top the squash with the ground beef, beans, corn and cilantro along with any other favorites. I love tomatoes, black olives, red peppers, avocado, onion. If you like cheese you can easily add it to the very top and bake for 5 more minutes.