Preheat oven to 375°F (190°C) for steady, even heat.
In large skillet, heat olive oil over medium heat. Add chopped onion and cook 3-4 minutes until translucent. Add minced garlic and cook 1 minute until fragrant.
Add ground beef to skillet and cook until browned, about 6-7 minutes, breaking into small crumbles. Season with salt and pepper.
Stir in chopped green chilies and cook 2 minutes to incorporate flavors.
In separate small skillet, heat oil over medium heat. Quickly fry each corn tortilla for few seconds on each side until pliable. Drain on paper towels.
Pour small amount of enchilada sauce into 9×13 inch baking dish, tilting to coat bottom evenly.
Spoon 2-3 tablespoons beef mixture onto each tortilla, add sprinkle of cheese, and roll tightly. Place seam-side down in dish.
Pour remaining enchilada sauce over rolled tortillas. Sprinkle rest of shredded cheese evenly over top.
Bake for 20 minutes until cheese is melted and bubbly.
Let rest few minutes, then garnish with chopped cilantro and serve with optional toppings.
Notes
Fry tortillas briefly to make them pliable and prevent tearing during rolling.
Corn tortillas provide authentic flavor and texture.
Arrange rolled tortillas snugly in dish to help them hold shape.
Can be assembled and frozen unbaked for future meals.