Recipe

Chili Relleno Casserole

Roasted green chiles + melty cheese baked in a fluffy egg batter for a no-fry take on chili rellenos.

By Matt Campbell

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A golden baked chili relleno casserole in a white ceramic baking dish on a warm kitchen counter, with roasted green chiles and melted cheese bubbling at the edges

If you love chili rellenos but do not love the part where your kitchen smells like a fry shack for a while, this casserole is your new best friend. It has the same big payoff: roasted green chile flavor, stretchy melted cheese, and that cozy eggy batter vibe. The difference is you layer it up, pour on a quick batter, and let the oven do the heavy lifting.

This is the kind of dinner I make when I want something bold and comforting but also want to keep the process low drama. Serve it with salsa, a little sour cream, and whatever crunchy thing you have lying around, chips count.

Roasted poblano peppers on a cutting board with blackened skins partially peeled back, set on a home kitchen counter with warm natural light

Why It Works

Why it works

All the flavor, none of the frying. Roasting the chiles brings that smoky, sweet heat that makes chili rellenos so addictive.
A fluffy set, not a rubbery omelet. A simple egg and milk batter bakes up tender, especially with a little flour for structure.
Cheese acts like glue and sauce. It melts into the chiles and custard, so every slice holds together and stays juicy.
Make it your way. Mild, spicy, meatless, or loaded with sausage, it is flexible without turning into chaos.

Pairs Well With

Storage Tips

Refrigerate: Cool completely, then cover the baking dish or transfer slices to an airtight container. Store for up to 4 days.

Reheat: For best texture, reheat in a 350°F oven until warmed through, about 12 to 20 minutes depending on thickness. For food-safety clarity, aim for about 165°F in the center.

Freeze: You can freeze slices, but the egg custard can weep a little when thawed. If you do it, wrap individual portions tightly and freeze up to 2 months. Thaw overnight in the fridge, then reheat in the oven.

Square slices of chili relleno casserole packed into a glass meal prep container with a tight lid on a kitchen counter

Common Questions

Common questions

What chiles should I use for chili relleno casserole?

Poblanos are a very common classic choice because they are mild, roasty, and easy to stuff or layer. That said, plenty of chili relleno style dishes use Anaheim or New Mexico chiles too. For a shortcut, you can use canned whole green chiles (often Anaheim). If you want more heat, mix in a jalapeño or use hotter Hatch style chiles if you have them.

Do I have to peel the roasted poblanos?

You do not have to be perfect, but peeling most of the skin makes the texture way nicer. The skins can get papery and tough after baking. Steam them in a covered bowl after roasting and the skins slide off faster.

Should I rinse the peppers after roasting?

I would not. A quick rinse can wash away some of that smoky chile flavor you just worked for. Peel and wipe off the loose char instead, then pat the peppers dry.

Why is my casserole watery?

Usually it is extra moisture from the chiles or cheese. Pat the chiles very dry after peeling (this matters a lot with canned chiles too), and avoid super wet salsa inside the casserole. Also, let the casserole rest 10 minutes before slicing so it can set.

Can I make it ahead?

Yes. Roast and prep the chiles up to 2 days ahead. You can also assemble the layers in the dish, cover, and refrigerate overnight. Whisk the egg batter right before baking for the fluffiest result.

Is this gluten-free?

As written, it has flour. The most reliable swap is a 1:1 gluten-free flour blend. If you want to use cornstarch, it will bake up more custardy and a bit softer. Start with 2 tablespoons cornstarch in place of the flour and, if you know you like a firmer slice, bump it up to 3 tablespoons next time.

A glass bowl of pale yellow egg batter with a whisk resting inside on a kitchen counter, with measured ingredients nearby

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

9x13-inch baking dish
Rimmed sheet pan (for roasting peppers)
Mixing bowls
Whisk
Measuring cups and spoons
Tongs and a cutting board

The first time I made chili rellenos at home, I went in confident and came out humbled. Tasty, yes. Also messy enough to make me consider a one person kitchen union. This casserole is my peace treaty with the classic. You still get the roasted chile hit and the cheese pull, but your stove stays clean and you can actually enjoy dinner instead of recovering from it.