Preheat the oven to 350 degrees F. Prick each potato several times with a fork. Bake until tender, about 60 minutes.
While the potatoes cook, set a pot over medium heat. Add the beef and cook, stirring occasionally, until the beef is cooked through. Drain away the excess fat, and then add the remaining ingredients, except green onions. Bring to a simmer and simmer 10 to 15 minutes.
When the potatoes are cooked, divide among plates, make a slit in the middle of each one, and squeeze the potatoes open. Top the potatoes with chili, sprinkle with green onion, and serve.