Step 1: Prepare the Chicken Filling
- Heat olive oil in a medium-sized skillet over medium heat.
- Add diced onions, minced garlic, cumin, salt, and black pepper. Sauté for about two to three minutes until the onion turns soft and translucent.
- Stir in the shredded chicken and cook for another two minutes until warmed through.
- Remove from heat and mix in 1 cup of shredded Monterey Jack cheese. This will help the filling stick together when rolling the enchiladas. Set aside.
Step 2: Make the Sauce
- In a medium saucepan, melt butter over medium heat. Once melted, whisk in the flour to create a smooth paste.
- Let the flour cook for about one minute to remove the raw taste, then gradually add the chicken broth while whisking continuously.
- Bring the mixture to a simmer and let it cook for about five minutes, stirring frequently, until it thickens slightly.
- Remove from heat and stir in the sour cream and green chiles. Taste and adjust seasoning with additional salt and pepper if needed.
Step 3: Assemble the Enchiladas
- Preheat your oven to 350°F.
- Spread about ½ cup of the sour cream sauce onto the bottom of a 9×13-inch casserole dish. This prevents the tortillas from sticking and adds extra flavor.
- Divide the chicken mixture into eight equal portions.
- Place each portion in the center of a tortilla, roll it up tightly, and lay it seam-side down in the prepared dish.
Step 4: Bake the Enchiladas
- Pour the remaining sour cream sauce evenly over the rolled tortillas.
- Sprinkle the remaining 1 cup of shredded Monterey Jack cheese on top.
- Bake for 20 to 30 minutes, or until the cheese is melted and the sauce is bubbling around the edges.
- Remove from the oven and let it rest for about five minutes before serving.