Set a waffle iron to medium-high.
Drizzle EVOO in a sauté pan over medium heat. Brown ground beef and add cumin, coriander, garlic powder, onion powder, chili powder, salt and pepper. Set aside and cool.
In a medium bowl, mix cornbread mix with milk, egg and butter. Stir to combine. Add in cooled taco meat, Monterey Jack and scallions.
Evenly pour the cornbread batter onto the waffle maker. Close the waffle maker and cook 5 minutes.