Cheesy Jalapeño Corn Casserole is an easy Jiffy corn casserole recipe with one-bowl prep and make-ahead convenience for holiday dinners and weeknight meals. Sweet corn, creamed corn, sour cream, and a three-cheese blend bake into a fluffy, spoonable cornbread casserole with a mild jalapeño kick.
For more comforting sides, try our Bacon-Wrapped Green Bean Bundles or Creamy Gouda Mac and Cheese.
Cheesy Jalapeño Corn Casserole at a Glance 🔎
- 🕒 Prep Time: 10 minutes
- ⏱️ Cook Time: 45 to 55 minutes
- 🧊 Rest Time: 15 to 30 minutes
- 👥 Servings: 8
- 🔥 Cook Method: Oven-Baked
- 🍽️ Cuisine (or General Category): American Comfort Food
- 👩🍳 Pair With: Oven-Baked BBQ Ribs, Herb Roasted Chicken, or Herb Roasted Turkey Breast
- ⭐ Difficulty Level: Easy
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Fresh jalapeños give the casserole a mild kick without overpowering the corn. Pair it with smoked meats for a classic Southern plate. ~Jami
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Why We Love This Recipe
- One-Bowl Prep: Jiffy Corn Muffin Mix does most of the work, so the batter comes together in about 10 minutes with no mixer required.
- Fluffy, Soufflé-Like Texture: Eggs and sour cream give this corn casserole a light, spoonable center with a golden, cheesy top.
- Holiday-Ready: It bakes in one dish and can be assembled a day ahead, making it an easy side for Thanksgiving and holiday dinners.
- Adjustable Heat: Add more jalapeños for extra spice, seed them for a milder bite, or leave them out entirely for kids.
Key Ingredients
- Jiffy Corn Muffin Mix: The base of this cornbread casserole. It gives the dish its light texture and sweet corn flavor, so there's no need to measure flour, cornmeal, or leavening separately.
- Sour Cream: Sour cream adds moisture and a slight tang that balances the sweetness of the corn. Full-fat sour cream gives the creamiest result.
- Whole Kernel Corn and Creamed Corn: Using both gives the casserole sweet pops of corn and a creamy base. Drain the whole kernel corn well, but add the creamed corn straight from the can.
- Three-Cheese Blend: A mix of cheddar, Monterey Jack, and Colby melts smoothly and browns well. Stir most of it into the batter and reserve ½ cup for the golden top.
- Fresh Jalapeños: Chop them finely so the heat spreads evenly through every bite. Save a few slices for topping if you want a pop of color.
- Butter and Eggs: Melted butter adds richness, while the eggs bind the batter and help it set. Let the butter cool slightly before adding it so it doesn't scramble the eggs.
- Sugar (optional): A tablespoon enhances the corn's natural sweetness. Skip it for a more savory casserole.
A full ingredient list with exact measurements can be found in the recipe card below.
Substitutions & Variations
- Jalapeños: Swap in diced bell peppers or poblano peppers for a milder casserole.
- Sour Cream: Plain Greek yogurt works for a tangier flavor and a slight protein boost.
- Cheese: Try Gouda or mozzarella for a different cheesy flavor.
- Kid-Friendly: Leave out the jalapeños entirely for a mild, cheesy corn casserole.
- Make-Ahead: Assemble the casserole, cover, and refrigerate for up to 24 hours before baking.
How to Make Cheesy Jalapeño Corn Casserole
STEP ONE: Add the Ingredients to the Bowl
Preheat the oven to 375°F and generously grease a 9×9-inch baking dish with butter.
Add the Jiffy Corn Muffin Mix, sour cream, drained whole kernel corn, creamed corn, cooled melted butter, sugar (if using), whisked eggs, 1 cup of the cheese blend, and the finely chopped jalapeños to a large bowl. Reserve the remaining ½ cup of cheese and a few jalapeño slices for the topping.
STEP TWO: Mix the Batter
Stir gently with a spatula just until no dry streaks of cornbread mix remain. The batter will be thick and slightly lumpy from the corn, with cheese and jalapeños spread throughout. Stop as soon as everything is combined. Overmixing can make the casserole dense instead of fluffy.
STEP THREE: Assemble the Casserole
Pour the batter into the prepared dish and smooth the top. Sprinkle the reserved cheese evenly over the surface and add the jalapeño slices. For a richer, golden crust, dot the top with a few small pats of butter.
STEP FOUR: Bake, Rest, and Serve
Bake for 45 to 55 minutes, until the top is golden brown and the center is set. For a darker crust, broil for 1 to 2 minutes, watching closely.
Let the casserole rest for 15 to 30 minutes before serving so the center can finish setting.
Expert Tips for Success
👩🍳Jami's Pro Tips: Want to take this recipe to the next level? Check out my expert tips below for the best flavor, texture, and meal prep hacks!
✔️ DO Reserve some of the cheese blend for the top to create a golden, bubbly crust.
✔️ DO Add a few pats of butter on top for a crispier finish.
❌ DO NOT Skip the rest time. Cutting in too soon leaves the center loose.
Storage
Store leftover corn casserole in an airtight container in the refrigerator for up to 3 days. To reheat, microwave individual portions for 1 to 2 minutes, or bake covered at 350°F for 10 to 15 minutes until warmed through. To freeze, cool completely and store in a freezer-safe container for up to 2 to 3 months. Thaw overnight in the refrigerator, then bake at 350°F for about 20 minutes.
Jalapeño Corn Casserole with Jiffy Recipe FAQs
Yes. Assemble the casserole up to the baking step, cover tightly with plastic wrap or foil, and refrigerate for up to 24 hours. Uncover and bake as directed, adding a few extra minutes since the dish starts cold.
Yes. This Jiffy corn casserole is an easy Thanksgiving side because it bakes in one dish and can be assembled the day before. Bake it while the turkey rests, since the casserole needs time to set before serving.
Remove the seeds and white veins from the jalapeños before chopping, or use fewer peppers. For the mildest version, swap in diced poblano or bell pepper.
Yes. Cool it completely, then freeze in an airtight, freezer-safe container for up to 2 to 3 months. Thaw overnight in the refrigerator and reheat at 350°F for about 20 minutes, or until heated through.
Related
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📖 Recipe
Cheesy Jalapeño Corn Casserole: Easy Jiffy Recipe
Equipment
- Mixing bowls
- 9x9-inch ceramic baking dish
- Whisk
- Spatula
- Oven mitts
Ingredients
- 1 box Jiffy Corn Muffin Mix
- 1 cup sour cream
- 1 (15-ounce) can whole kernel corn, drained
- 1 (15-ounce) can creamed corn
- 2 fresh finely chopped jalapeños reserve some for topping
- ½ cup unsalted butter (melted and cooled)
- 2 tablespoons unsalted butter (cut into small pats, for topping, optional)
- 2 large eggs whisked
- 1 ½ cups shredded cheese blend (cheddar, Monterey Jack, and Colby) reserve ½ cup for topping
- 1 tablespoon sugar optional
Instructions
- Preheat your oven to 375°F (190°C). Grease a 9x9-inch baking dish (or soufflé dish) generously with butter.
- In a large bowl, stir together the Jiffy Corn Muffin Mix, sour cream, whole kernel corn (drained), creamed corn, cooled melted butter, sugar (if using), and whisked eggs. Fold in the finely chopped jalapeños (reserving some slices for topping) and 1 cup of shredded cheese blend (reserving ½ cup for topping).
- Pour the mixture into the prepared baking dish and smooth the top. Sprinkle the reserved cheese blend evenly over the top, then add slices of jalapeno. Optionally, distribute pats of butter on top for a richer, golden-brown crust.
- Bake for 45-55 minutes, or until the soufflé is set in the center and the top is golden brown. For an even darker crust, broil the top on high for 1-2 minutes at the end of baking, watching carefully to avoid burning.
- Let the soufflé rest for 15 to 30 minutes before serving. The top will be crispy, buttery, and full of cheesy-jalapeño flavor, while the inside remains light and fluffy.
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Notes
- Bake until the center is set but still slightly soft.
- Reserve some cheese for the top to create a golden crust.
- Allow the casserole to rest before cutting for cleaner slices.
- Chop jalapeños evenly so the spice distributes throughout the dish.
Sue Woo says
I’m taking this to a thanksgiving gathering but I want to use disposable aluminum pans. Do I need to adjust anything?
Jami Powell says
Hi Sue! We’ve never tried this in aluminum, but I've read that it does cook faster. My advice would be to start checking early. It’s ready when the edges are set, the center has a slight jiggle, a knife near the middle comes out mostly clean, and the top is light golden.
Louise says
What is the tablespoon of sugar for ? I see no mention of it in the instructions.
I plan to make this today for a gathering and will skip the sugar. Will let you know the results.
Jami Powell says
Louise, thank you for your comment! The sugar is optional and enhances the corn's natural sweetness, but skipping it works just fine if you prefer a less sweet flavor. I've made a note to update the recipe for clarity. We would love to hear how it turns out for your gathering - enjoy! 😊