Heat 1 tablespoon of oil in a large skillet over medium heat. Add the chopped onion and cook for 2–3 minutes, until softened.
Add the ground beef and cook, breaking it up with a spoon, until browned and fully cooked. About 7 to 10 minutes. Drain excess grease if needed.
Stir in the green chiles, taco seasoning, and water. Simmer for 2–3 minutes, until the mixture thickens and coats the beef. Remove from heat.
Preheat the oven to 375°F and line a baking sheet with parchment paper. Wrap the corn tortillas in a damp paper towel and microwave for about 30 seconds to make them pliable.
Arrange tortillas flat on the prepared baking sheet. Spoon beef mixture onto one half of each tortilla, sprinkle with shredded cheese, then fold over.
Lightly brush the tops of the tacos with the remaining oil.
Bake for 15 minutes, or until the tortillas are crispy and golden and the cheese is melted.
Remove from the oven and immediately squeeze fresh lime juice over the tacos. Garnish with desired toppings and serve warm while crispy. Enjoy!
Notes
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.