There’s nothing quite like the irresistible aroma of a bubbling chile relleno casserole wafting through your home. Picture this: you walk into the kitchen and are instantly greeted by the enticing scent of roasted peppers mingling with cheese and spices. It’s enough to make even the most indifferent eater perk up and ask what’s cooking!

Jump to:
- <strong>Essential Ingredients</strong>
- <strong>Let’s Make it Together</strong>
- <strong>Perfecting the Cooking Process</strong>
- <strong>Add Your Touch</strong>
- <strong>Storing & Reheating</strong>
- <strong>FAQ</strong>
- Can I use frozen chiles for the casserole?
- What sides pair well with chile relleno casserole?
- How can I make it vegetarian-friendly?
- 📖 Recipe Card
I remember the first time I made this dish; it was during a family reunion potluck. I was feeling brave (or maybe just hungry) and decided to whip up my version of this classic recipe. The moment I pulled it out of the oven, my relatives descended upon it like seagulls at a beach picnic. My cousin even declared it “life-changing,” which might have been an exaggeration but definitely made me feel like a culinary rock star!
The best moments often happen around delicious food shared with loved ones. This casserole shines at potlucks or casual dinners when you need something quick yet impressive.
Why You'll Love This Recipe
- This chile relleno casserole is super easy to prepare, making weeknight dinners a breeze.</p>
- <p>Packed with flavor from roasted peppers and melty cheese that will leave everyone craving more.</p>
- <p>With its vibrant colors and delightful aroma, this dish is visually stunning on any table.</p>
- <p>Perfect for leftovers—reheat it for lunch or serve it as an impressive brunch option
My aunt took one bite of my casserole and exclaimed that she’d never need to go out for Mexican food again!

Essential Ingredients
Here’s what you’ll need to make this delicious dish:
- Roasted Green Chiles: Fresh or canned will work; choose mild or hot based on your preference.
- Cheddar Cheese: Use sharp cheddar for maximum flavor; feel free to mix in Monterey Jack for creaminess.
- Eggs: These provide structure; fresh eggs yield the best results.
- Milk: Whole milk adds richness; substitute with almond milk if dairy-free.
- Baking Powder: Helps the casserole rise for that fluffy texture we love.
- Sour Cream: Adds creaminess; Greek yogurt can be used as a healthier alternative.
- Onions: Sautéed onions enhance flavor; yellow onions are the best choice here.
- Garlic: Fresh garlic adds aromatic depth; minced garlic works beautifully.
The full ingredients list, including measurements, is provided in the recipe card directly below.
Let’s Make it Together
Preheat Your Oven: Begin by preheating your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with nonstick spray so nothing sticks later.
Sauté Onions and Garlic: Heat some olive oil in a skillet over medium heat. Add chopped onions and minced garlic until they turn translucent and fragrant—about 5 minutes should do it!
Prep Your Peppers: If using fresh chiles, roast them until charred blackened skin appears. Then peel away the skin under cool running water. You want them sweet yet slightly smoky.
Mix Your Egg Mixture: In a large bowl, whisk together eggs, milk, sour cream, baking powder, salt, and pepper until smooth. This is where all that creamy goodness comes together!
Layer It Up!: Spread half of your roasted chiles in the greased baking dish followed by half of the sautéed onion-garlic mixture. Sprinkle half of your cheddar cheese over that layer before repeating with remaining ingredients.
Bake to Perfection: Pour your egg mixture evenly over everything in the dish. Bake in the preheated oven for about 35-40 minutes until golden brown or until set in the middle—feel free to check with a toothpick!
This chile relleno casserole captures all those comforting flavors we love while being surprisingly easy to make! Enjoy every cheesy bite while reminiscing about your own foodie adventures!
You Must Know
- This chile relleno casserole is a fiesta on your plate, bursting with flavors that dance and twirl
- The combination of roasted peppers and gooey cheese creates a delightful texture that will leave you craving more
- It’s the perfect dish to impress friends at dinner parties!
Perfecting the Cooking Process
Start by roasting the chiles while preheating your oven. Prepare your filling and mix it all together before layering in a baking dish. Ensure even cooking for that gooey cheese experience.

Add Your Touch
Feel free to swap in different cheeses like pepper jack for extra heat or add cooked ground beef for heartiness. A sprinkle of cilantro on top adds freshness and color!
Storing & Reheating
Store leftovers in an airtight container in the fridge for up to three days. Reheat in the oven at 350°F until warmed through for best results.
Chef's Helpful Tips
- </p>
- <p>Ensure your chiles are roasted well to enhance their flavor and sweetness.</p>
- <p>Don’t skip the resting time; it helps meld all the delicious flavors together beautifully.</p>
- <p>Experiment with toppings like sour cream or avocado for added creaminess and flavor!</p>
- <p>
The first time I made this casserole, my friends devoured it faster than I could say “chile relleno.” Their enthusiastic compliments made me realize I had stumbled upon something special!

FAQ
Can I use frozen chiles for the casserole?
Yes, just thaw them completely before using for optimal texture.
What sides pair well with chile relleno casserole?
Serve with a fresh salad or Mexican rice for a complete meal!
How can I make it vegetarian-friendly?
Simply replace any meat with beans or extra veggies for a delicious twist!
Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.
📖 Recipe Card
Print
Easy and Delicious Chile Relleno Casserole Recipe
- Total Time: 55 minutes
- Yield: Serves 8
Description
Discover the magic of chile relleno casserole, where cheesy goodness meets roasted pepper perfection! Imagine this: you stroll into your kitchen, and an irresistible aroma knocks you off your feet. It’s a comforting hug on a plate that guarantees happy taste buds. With layers of gooey cheese and smoky chiles baked to golden perfection, you’ll be the star of any gathering—or at least the one with the most impressive leftovers.
Ingredients
- Roasted green chiles
- Cheddar cheese
- Eggs
- Milk
- Baking powder
- Sour cream
- Onions
- Garlic
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- Sauté chopped onions and minced garlic in olive oil until translucent.
- Roast fresh chiles until charred, then peel under cool water.
- In a bowl, whisk together eggs, milk, sour cream, baking powder, salt, and pepper until smooth.
- Layer half of the roasted chiles in the baking dish, followed by half of the onion-garlic mixture and half of the cheddar cheese. Repeat layers.
- Pour the egg mixture evenly over all layers and bake for 35-40 minutes until golden brown.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Main
- Method: Baking
- Cuisine: Mexican
Nutrition
- Serving Size: 1 slice (180g)
- Calories: 310
- Sugar: 3g
- Sodium: 540mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 2g
- Protein: 12g
- Cholesterol: 160mg