Preparing chicken enchiladas with green sauce is a straightforward process. Follow these step-by-step instructions to ensure your enchiladas turn out perfectly every time:

1. Preheat Your Oven: Begin by preheating your oven to 350°F (175°C). This will ensure your enchiladas cook evenly.
2. Sauté the Onions: In a skillet, heat the olive oil over medium heat. Add the chopped onions and sauté until they become soft and translucent. This should take about 5 minutes.
3. Prepare the Chicken Mixture: In a bowl, combine the shredded cooked chicken, cumin, salt, pepper, and half of the green enchilada sauce. Mix well until the chicken is evenly coated with the sauce and spices.
4. Warm the Tortillas: Place the corn tortillas in the microwave for about 30 seconds to make them pliable. This will prevent them from cracking when you roll them.
5. Assemble the Enchiladas: Take each tortilla and fill it with the chicken mixture. Roll them up neatly and place them seam-side down in a baking dish.
6. Add Sauce and Cheese: Pour the remaining green enchilada sauce over the top of the rolled tortillas. Sprinkle the shredded cheese evenly across the enchiladas.
7. Bake: Place the baking dish in the preheated oven and bake for approximately 20 minutes, or until the cheese is bubbly and golden brown.
8. Serve: Once baked, remove the enchiladas from the oven and let them cool slightly. Serve hot with a dollop of sour cream on top for added creaminess.