Preheat your griddle to medium heat. Add some cooking oil, the corn kernels, onion, kosher salt, pepper, and taco seasoning blend to taste. Cook 6 minutes, mixing with spatulas a few times.
Add garlic and most of the cilantro. Cook 3 to 4 more minutes, mixing a few times.
Squeeze some of the lime wedges over top and add the jar of crema. Mix together another minute with spatulas until combined.
Serve topped with remaining cilantro, cotija cheese, more taco seasoning, and with remaining lime wedges on the side.