01 - Preheat oven to 375°F. Grease a 9x13-inch baking dish lightly with oil or cooking spray.
02 - In a skillet over medium heat, warm olive oil. Add onion and sauté 3–4 minutes until translucent. Stir in garlic, cumin, and oregano; cook 1 minute until fragrant.
03 - Add shredded chicken, salt, and pepper to the skillet. Mix well to combine with aromatics and cook for 2 minutes. Remove from heat.
04 - In a small bowl, combine green enchilada sauce with chopped cilantro and lime juice. Stir until evenly incorporated.
05 - Wrap tortillas in a damp paper towel and microwave for 45 seconds to soften, making them pliable for rolling.
06 - Spread 1/2 cup of the prepared sauce on the bottom of the baking dish to prevent sticking.
07 - Fill each tortilla with about 2 tablespoons of the chicken mixture and a sprinkle of cheese. Roll up tightly and place seam-side down in the dish.
08 - Pour remaining sauce evenly over the enchiladas. Top with the remaining Monterey Jack cheese, distributing it across the surface.
09 - Bake uncovered for 25–30 minutes until cheese is melted and bubbly, and edges are slightly golden.
10 - Let cool for 5 minutes to set. Serve topped with sour cream, diced avocado, and extra cilantro.