Preheat the oven to 400 degrees. Coat a small cast iron pan with cooking spray.
Heat the oil in a skillet over medium heat. Add the onion and sauté for 3-5 minutes or until softened. Add the rinsed and drained black beans to the skillet along with the enchilada sauce. Season with a couple dashes of oregano, coriander, cumin, garlic powder, sea salt, and freshly cracked pepper, to taste. Cook for 3-5 minutes. Remove from heat.
Heat the tortilla over a gas flame on both sides for 20-30 seconds OR heat in a microwave for 10 seconds, or until pliable. Place the tortilla in the bottom of the prepared cast iron skillet. Spoon some of the black bean mixture on top of the tortilla. Crack one or two eggs in the center. Sprinkle a few diced tomatoes on top.
Place into the oven and cook for 10-12 minutes or until the whites are cooked through but the yolks are still runny. Remove from the oven and top with diced jalapeno, fresh cilantro, and cotija cheese. Serve with salsa and lime wedges on the side. Enjoy!