Green Enchilada Casserole with Chicken is one of those cozy, layered bakes that feel like a hug in casserole form. It blends bright, tangy tomatillo sauce with smoky poblano and serrano heat, tender shredded chicken, crisped corn tortillas and melty cheese—baked until bubbling and golden on top. This version uses roasted chiles and tomatillos for a vibrant, fresh sauce, and it’s flexible enough to make ahead, feed a crowd, or serve as weeknight comfort food with minimal fuss.

Why you’ll love it

This casserole hits all the notes: bright acidity from tomatillos, a gentle heat from serranos, a roasted depth from poblanos (or canned roasted chiles if you prefer), creamy richness from crema and cheese, and satisfying texture from lightly fried tortillas. It assembles quickly and bakes into a family-pleasing one-dish meal that keeps well for leftovers.

Ingredients

▢12 poblano peppers Or a large can of roasted chiles (1 lb)
▢2 lb tomatillos husks removed
▢3 to 4 serrano peppers stems removed
▢1 large white onion cut into thick slices
▢6 cloves garlic slice in half, lengthwise
▢½ cup cilantro fresh, roughly chopped
▢¼ cup vegetable oil
▢4 cups chicken broth or vegetable broth
▢1½ cups Mexican crema or half and half
▢1½ teaspoon Kosher salt
▢½ teaspoon black pepper
▢vegetable oil for quick-frying tortillas
▢18 corn tortillas
▢4 cups rotisserie chicken 2 chickens, meat removed and chopped
▢Salt and pepper
▢4 cups shredded cheese cheddar and/or Monterey Jack
▢2 tablespoon cilantro chopped, for garnish
▢pico de gallo or salsa, for serving
▢sour cream or Mexican crema, for serving

Equipment

Large baking sheet (for roasting)
Large skillet
Blender or food processor
9×13-inch baking dish
Tongs or spatula
Paper towels or clean kitchen towel

Prep at a glance

Roast the poblanos, tomatillos, onion and garlic; blend into a sauce with serranos, cilantro, broth, crema and seasonings; crisp tortillas briefly in oil; layer tortillas, chicken, sauce and cheese; bake until hot and bubbly; garnish and serve.

Step-by-step instructions

Below are clear, sequential directions that follow the ingredient list and keep the original order and amounts intact. Read through once, then work through each step—the process moves quickly once the sauce is blended.

Roast the poblanos and aromatics. Preheat the oven to 450°F (230°C). Spread the 12 poblano peppers (or the large can of roasted chiles, drained and patted dry if you choose the canned option) on a large baking sheet. Add the 2 lb tomatillos with husks removed, the 1 large white onion cut into thick slices, and the 6 cloves garlic (sliced in half lengthwise). Drizzle a little of the ¼ cup vegetable oil over the vegetables or brush lightly so they roast evenly.
Char and soften. Roast in the preheated oven until the poblanos are blackened in spots and the tomatillos and onion have softened, about 18–25 minutes, turning once halfway through so everything chars evenly. If using canned roasted chiles, you can still roast the tomatillos, onion and garlic to develop flavor, but skip charring the canned chiles to avoid overcooking.
Steam and peel poblanos. Once the poblanos are charred, transfer them to a bowl and cover tightly with a lid or plastic wrap for 10 minutes to steam. This makes the skins easier to remove. After steaming, peel away and discard the skins, remove seeds if desired for less heat, and roughly chop the roasted poblanos.
Combine sauce ingredients in the blender. In a blender or food processor, add the roasted tomatillos, roasted onion, roasted garlic, the chopped roasted poblanos (or the drained canned roasted chiles), 3 to 4 serrano peppers with stems removed (start with 3 if you prefer milder heat), ½ cup roughly chopped cilantro, 4 cups chicken broth or vegetable broth, 1½ cups Mexican crema or half and half, 1½ teaspoon Kosher salt, and ½ teaspoon black pepper. Secure the lid and blend until the mixture is very smooth and well combined.
Heat the sauce on the stovetop. Pour the blended green sauce into a large skillet and bring it to a gentle simmer over medium heat, stirring occasionally. Let it cook for 5–8 minutes to meld flavors and slightly thicken. Taste and adjust seasoning if needed—add a touch more salt or pepper to suit your preference.
Prepare the chicken. Remove meat from 2 rotisserie chickens and chop it into bite-sized pieces until you have 4 cups of shredded/chopped rotisserie chicken. Season the chicken lightly with salt and pepper. If your rotisserie chickens are already well seasoned, taste before adding more salt.
Quick-fry the tortillas. Pour enough vegetable oil into a shallow skillet to coat the bottom for quick-frying. Heat the oil over medium-high heat until shimmering. Working in batches, dunk each of the 18 corn tortillas briefly—about 5–10 seconds per side—just until pliable and slightly crisp at the edges. Transfer fried tortillas to a plate lined with paper towels or a clean kitchen towel to drain excess oil.
Assemble the casserole. Preheat the oven to 375°F (190°C). Spread a thin layer of the warm green sauce (about 1 to 1½ cups) across the bottom of a 9×13-inch baking dish to prevent sticking. Arrange a single layer of quick-fried tortillas to cover the sauce. Distribute roughly one-third of the chopped rotisserie chicken evenly over the tortillas, then spoon a generous layer of the green sauce over the chicken. Sprinkle about 1⅓ cups of shredded cheese (from the 4 cups total) across this layer.
Repeat layers. Add a second tortilla layer, then another third of the chicken, more green sauce, and another 1⅓ cups of shredded cheese. Finish with a third tortilla layer, the remaining chicken, the rest of the green sauce, and top evenly with the final 1⅓ cups of shredded cheese so the top is well covered.
Bake until bubbly and golden. Cover the baking dish loosely with foil and bake in the preheated oven for 20 minutes to allow the casserole to heat through. Remove the foil and bake for an additional 10–12 minutes, or until the cheese is melted, bubbly, and beginning to turn golden brown at the edges.
Rest and garnish. Remove the casserole from the oven and let it rest for 8–10 minutes so it sets slightly and is easier to slice. Sprinkle the top with 2 tablespoon chopped cilantro for a fresh finish.
Serve. Slice into squares and serve warm with pico de gallo or your favorite salsa, and a dollop of sour cream or Mexican crema on the side. Offer extra lime wedges for brightening each portion if you like a tangier finish.

Troubleshooting & tips

If your sauce is too thin: Simmer it a few minutes longer to reduce, or stir in a tablespoon of masa harina or cornstarch slurry (1 tsp cornstarch + 1 tbsp water) and simmer until thickened.
Want less heat: Remove serrano seeds or start with 3 serranos; roasted poblanos are mild so they mainly add smoky flavor.
Make it vegetarian: Use vegetable broth and swap the rotisserie chicken for 4 cups cooked black beans, shredded jackfruit, or sautéed mushrooms.
Make ahead: Assemble the casserole up to the baking step, cover and refrigerate for up to 24 hours; when ready, bake from chilled—add an extra 10–15 minutes covered, then uncover to finish browning.
Leftovers: Store cooled casserole in an airtight container in the fridge for up to 4 days. Reheat individual portions in the microwave or warm in a 350°F oven, covered, until heated through.

Serving suggestions

This dish pairs beautifully with a simple green salad, a citrusy slaw, or charred corn. For a lighter contrast, serve with lime wedges and a bright pico de gallo. A scoop of avocado or a drizzle of extra crema on each plate adds cooling richness.

Flavor variations

Smoky: Add a teaspoon of smoked paprika to the blended sauce for a deeper smoky note.
Herby: Stir additional chopped cilantro into the sauce before layering for extra fresh herb flavor.
Extra melty: Swap part of the cheese for Oaxaca or a mild melting cheese for an ultra-gooey top.

Notes on ingredients and swaps

If fresh roasted poblanos aren’t available or you’re short on time, a large can (1 lb) of roasted chiles works well—skip the roasting step for those chiles and proceed with the tomatillos, onion and garlic roasting so your sauce stays vibrant. Use either chicken broth or vegetable broth depending on your preference, and choose Mexican crema or half and half to control richness. Corn tortillas should be briefly fried so they layer without tearing and hold up during baking.

Nutrition estimate (per serving)

Calories and macronutrients will vary based on brand choices, the amount of oil absorbed by tortillas, and whether you use crema or half and half. Expect this casserole to be a hearty, protein-rich main with moderate fat from cheese and crema and carbohydrates from tortillas and tomatillos.

Final thoughts

This Green Enchilada Casserole with Chicken celebrates bright, roasted flavors and simple layering to create a comforting, colorful dish. It’s forgiving, family-friendly, and perfect for feeding a group or prepping ahead for a week of easy dinners. The smoky poblanos, tangy tomatillo sauce, tender rotisserie chicken and melty cheese come together into a satisfying bake that’s easy to customize.

Make the sauce once, keep it on hand for enchilada bowls or tacos, and enjoy how a handful of pantry staples and a couple of rotisserie chickens can transform into dinner magic.

Green Enchilada Casserole with Chicken

A layered green enchilada casserole made with roasted poblanos and tomatillo sauce, shredded chicken, and melty cheese.

Print Recipe Pin Recipe

Prep Time 30

Cook Time 1 30

Total Time 2 10

Servings: 10 servings

Ingredients Equipment Method Notes

Ingredients

12 poblano peppers or 1 lb roasted chiles (canned)
2 lb tomatillos husks removed
3 to 4 serrano peppers stems removed
1 large white onion cut into thick slices
6 cloves garlic halved lengthwise
1/2 cup cilantro fresh, roughly chopped (plus 2 tbsp for garnish)
1/4 cup vegetable oil for sauce
2 tbsp vegetable oil for frying tortillas (plus extra as needed)
4 cups chicken broth or vegetable broth
1 1/2 cups Mexican crema or half-and-half (plus extra for serving if desired)
1 1/2 teaspoon Kosher salt
1/2 teaspoon black pepper
18 corn tortillas
4 cups rotisserie chicken meat removed and chopped (about 2 chickens)
salt and pepper to taste for chicken layers
4 cups shredded cheese cheddar and/or Monterey Jack
2 tablespoon cilantro chopped, for garnish
pico de gallo or salsa for serving
sour cream or Mexican crema for serving

Equipment

9x13 inch Baking Dish
Baking Sheet
Blender or food processor
Large saucepan
Medium Skillet
heat-proof bowl
Paper Towels

Method

Preheat the broiler to high and place the top rack about 6 inches from the element.
Arrange the poblanos on a baking sheet and broil until the skins blacken in spots, about 8–10 minutes, turning once; transfer to a heat-proof bowl and cover with plastic wrap for 15 minutes.
When cool enough to handle, peel the poblanos, remove stems and seeds, open and set aside.
Broil the tomatillos, serranos, sliced onion, and halved garlic on a baking sheet until lightly charred, about 10–12 minutes.
Transfer the roasted tomatillos, serranos, onion, and garlic to a blender. Add 1/2 cup cilantro and blend until smooth.
Heat 1/4 cup vegetable oil in a large saucepan over medium heat. Add the blended tomatillo mixture and cook, stirring, 3–5 minutes.
Stir in 4 cups chicken (or vegetable) broth, simmer until slightly thickened and coats the back of a spoon, about 20 minutes.
Remove from heat and stir in 1 1/2 cups Mexican crema, 1 1/2 teaspoons kosher salt, and 1/2 teaspoon black pepper; set the sauce aside.
Heat oven to 350°F (175°C).
Heat 1 tablespoon vegetable oil in a medium skillet over medium heat. Quickly pass each corn tortilla through the hot oil, flipping immediately, so each tortilla is briefly fried and softened; drain on paper towels. Repeat for all 18 tortillas.
Spoon about one-quarter of the sauce across the bottom of a 9x13-inch baking dish.
Layer tortillas (use four whole tortillas plus one halved), spread more sauce over them, then top with half the chopped chicken, a sprinkle of salt if needed, one-third of the cheese, and half of the roasted poblanos.
Add another layer of tortillas, sauce, the remaining chicken, and the remaining poblanos.
Top with a final layer of tortillas, the remaining sauce, and the remaining cheese.
Bake the casserole at 350°F for 25–30 minutes, until bubbly and lightly browned. Let rest 5–10 minutes before slicing.
Garnish with chopped cilantro and serve with pico de gallo and sour cream or additional Mexican crema.

Notes

See the video near the top of the blog post for visual guidance.
To roast your own chicken, bake bone-in, skin-on chicken at 350°F for about 40 minutes until 165°F internal, then cool and shred.
Quick-frying tortillas makes them pliable and gives authentic flavor.
Or wrap tortillas in a damp paper towel and microwave 30–60 seconds to soften.
Adjust salt to taste, especially if using salted rotisserie chicken.