Place a frypan over medium-high heat, add the olive oil and ground bison, breaking up any lumps with a wooden spoon. Add taco seasoning and cook for about 6-8 minutes or until browned.
While taco meat is cooking, wash and chop vegetables. Drain and rinse corn from can.
Add lettuce, tomato, corn, bell pepper to 4 separate dishes. Top with 1/4 each of the taco meat once done cooking and cooled, fresh cilantro, and sliced avocado upon serving. Enjoy!
Notes
optional: add a dollop of plain low-fat Greek yogurt in place of sour cream!