1. Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
2. Heat olive oil in a skillet over medium heat. Add diced onion and minced garlic, sautéing until softened and fragrant, about 3-4 minutes.
3. Stir in the shredded chicken, cumin, chili powder, salt, and pepper. Cook for another 3 minutes, allowing the spices to infuse the chicken.
4. Remove the skillet from heat and stir in 1 cup of shredded cheddar cheese and the sour cream until everything is well combined and creamy.
5. Pour a thin layer of enchilada sauce on the bottom of the prepared baking dish to prevent sticking.
6. Warm the tortillas briefly in the microwave or on a skillet to make them pliable—this prevents cracking when rolling.
7. Spoon about 1/4 cup of the chicken mixture onto the center of each tortilla. Roll it up tightly and place seam-side down in the baking dish.
8. Once all tortillas are filled and arranged, pour the remaining enchilada sauce evenly over the top.
9. Sprinkle the remaining shredded cheddar and Monterey Jack cheeses generously over the enchiladas.
10. Bake uncovered for 20-25 minutes, or until the cheese is bubbly and golden around the edges.
11. Remove from the oven and let cool for 5 minutes. Garnish with chopped fresh cilantro before serving.

A little tip from my kitchen: I always keep a stash of shredded rotisserie chicken in the freezer for busy nights. It saves so much time and still delivers that homemade comfort. And don’t rush the baking—you want the cheese to be perfectly melted to get that signature gooey pull that enchiladas are known for.