Pastel Azteca
A creamy Mexican casserole layered with roasted poblano peppers, sweet corn, and melted Chihuahua cheese between tender corn tortillas, baked until golden and bubbly. Rich, comforting, and authentically satisfying.
- Prep
- 30 min
- Cook
- 40 min
- Wait
- 10 min
- Total
- 1 hr 20 min
- Makes
- 1 casserole (8–10 slices)
Steps
Before you start
- Have all ingredients measured and prepared before you start
- Bring tortillas and cheese to room temperature so they layer smoothly
- If using Chihuahua cheese and cannot find it, Oaxaca, quesadilla, or mozzarella work well
- Read through the roasting step first—charring and steaming the peppers takes about 20 minutes total
Roast the poblano peppers
- Place poblano peppers directly over a gas flame on your stovetop (or under the broiler if using an electric stove) for 12–15 minutes, turning occasionally with tongs until the skin is charred and blistered on all sides.
- Place the charred peppers in a plastic bag or a covered bowl for 5 minutes to steam.
- Peel away the charred skin with your fingers or a damp paper towel, working gently so the flesh doesn't tear.
- Remove the stem and seeds by making a slit along one side and pulling away the core.
- Slice the peppers lengthwise into ½-inch (1.25 cm) wide strips.
- Set aside.
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Ready when: Skin is completely blackened and blistered; flesh yields easily when pressed with a fork
Tip: Don't skip the steaming step—it makes peeling much easier without damaging the tender flesh
Sauté the aromatics
- Melt butter in a large skillet over medium heat.
- Add diced onion and cook, stirring occasionally, for about 5 minutes until softened and translucent.
- Add minced garlic and cook for 1 minute more, stirring constantly, until the aroma becomes strong and fragrant.
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Ready when: Onion is soft and translucent, garlic is golden and fragrant
Tip: Watch carefully so garlic doesn't brown—it will taste bitter if it chars
Combine the filling
- Add corn to the skillet with the onion and garlic, stirring gently to incorporate.
- Remove from heat.
- In a separate bowl, whisk together mexican crema and warm chicken broth until smooth and pourable.
- Pour the crema mixture over the corn and stir gently until all the corn is coated evenly.
- Season with salt and black pepper to taste.
- The filling should be creamy but still flow slightly when moved in the casserole dish.
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Ready when: Crema and broth are fully combined; corn is evenly coated and light golden
Tip: If your crema is very thick, thin it with another tablespoon or two of broth so it spreads smoothly between layers
Assemble the casseroleOven 375°F / 190°C
- Preheat oven to 375°F (190°C).
- Spread a very thin layer of the crema-corn filling on the bottom of a 9×13-inch (23×33 cm) baking dish.
- Arrange 6 corn tortillas to cover the bottom in a single layer, tearing pieces to fit into corners (overlap slightly to prevent gaps).
- Spread one-third of the remaining crema-corn filling over the tortillas in an even layer.
- Arrange half of the poblano strips across the filling in a single layer.
- Sprinkle with ¾ cup (85 g) of grated cheese.
- Repeat with another layer of 6 tortillas, one-third of the remaining filling, the remaining poblano strips, and another ¾ cup (85 g) of cheese.
- Top with a final layer of 6 tortillas, the last one-third of the filling, and the remaining ¾ cup (110 g) of cheese, making sure to cover all the tortillas completely.
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Ready when: Three complete layers are visible; cheese completely covers the top layer and edges
Tip: Make sure tortillas overlap slightly in corners so the filling doesn't leak out; if any tortillas poke above the filling, tuck them down gently
Bake until goldenOven 375°F / 190°C
- Place the casserole in the preheated 375°F (190°C) oven and bake for 35–40 minutes.
- The casserole is done when the top is deep golden brown and the filling is bubbling around the edges.
- If the top browns too quickly, cover loosely with foil for the last 10–15 minutes.
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Ready when: Top is golden brown, filling bubbles gently at the edges, center feels hot when tapped with a spoon
Tip: The center should bubble slightly when the casserole is done; if it's only hot on the edges, give it another 5 minutes
Rest and serve
- Remove the casserole from the oven and let it rest at room temperature for 10 minutes.
- This resting period allows the layers to set slightly so they won't fall apart when cut.
- Garnish with fresh cilantro if desired.
- Cut into 8–10 squares and serve warm, scooping through all the layers with a sturdy spatula to keep them intact.
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Ready when: Casserole is still warm but firm enough to cut neatly without the filling sliding
Tip: Use a long, straight-edged spatula and push down gently through all the layers at once to keep them together when plating
Good to know
Tips
- Roasted poblano peppers can be prepped 1 day ahead and stored in a sealed container in the refrigerator, making casserole assembly much faster on serving day.
- For a spicier casserole, add 1–2 finely diced jalapeños or serranos mixed into the corn filling, or sprinkle a pinch of cayenne pepper into the crema sauce.
- Pastel Azteca is traditionally vegetarian, but you can stir 1–2 cups of shredded cooked chicken into the crema mixture for a heartier, protein-rich version.
- Fresh epazote leaves or Mexican oregano sprinkled over each layer add authentic depth and earthiness—find them at Latin markets or order online; use sparingly as they have strong flavor.
Make ahead
The casserole can be assembled up to 24 hours ahead, covered with plastic wrap, and refrigerated before baking. Bake straight from the refrigerator, adding 5–10 minutes to the baking time since the filling will be cold.
Storage & reheating
Room temperature: up to 2 hours. Refrigerator: up to 4 days in a tightly covered container; reheat in a 350°F (175°C) oven for 15–20 minutes, or in the microwave in a covered dish for 3–5 minutes. Freezer: up to 3 months before baking, or 2 months after baking; thaw overnight in the refrigerator before reheating.
Substitutions
- Chihuahua cheese → Oaxaca cheese, quesadilla cheese, or mozzarella (use the same weight). Oaxaca and quesadilla cheese are traditional Mexican cheeses with similar stretchy, melting properties. Mozzarella is a widely available alternative with slightly less flavor.
- Mexican crema → sour cream thinned with water, or heavy cream mixed with a splash of lime juice. Mexican crema is thinner and tangier than sour cream. To approximate it, mix sour cream with 2 tablespoons water, or use crème fraîche.
- fresh or frozen corn kernels → frozen corn (thawed), or canned corn (drained well). Fresh corn has the best flavor and texture, but frozen works well. Avoid canned corn packed in heavy syrup; drain it thoroughly or it will make the filling watery.
- poblano peppers → Anaheim peppers or green bell peppers, roasted and peeled the same way. Anaheim peppers are milder and slightly fruitier; bell peppers will give a more delicate, less smoky flavor but require longer roasting.
