Corn Casserole Recipe: Creamy, Easy Side Dish

This corn casserole recipe makes a creamy, lightly sweet side dish with a tender center and golden top in about 45 minutes, and it can be assembled up to 24 hours ahead.

Corn Casserole Recipe at a Glance

Ingredients

• 2 cans (15 ounces each) whole-kernel corn, drained well
• 1 can (15 ounces) creamed corn
• 1 cup sour cream
• 8 tablespoons unsalted butter, melted and cooled for 5 minutes
• 2 large eggs
• 1 box (8.5 ounces) corn muffin mix
• 1 tablespoon granulated sugar, optional
• 1/2 teaspoon fine salt
• 1/4 teaspoon black pepper
• 1 cup shredded sharp Cheddar cheese, optional for a richer, savory topping

For the most consistent result, use the corn muffin mix by weight when possible: 8.5 ounces is approximately 240 grams. If using frozen corn instead of canned whole-kernel corn, measure 3 cups, thaw it completely, and pat it dry before mixing.

Duncan Hines Dolly Parton's Sweet Cornbread & Muffin Mix, 16 oz.

Included for 'Corn Casserole Recipe: Creamy, Easy Side Dish' because the listing specifies 16 oz., details this guide uses to compare options.

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Amazon Grocery, Canned Cream Style Corn, 14.75 Oz (Previously Amazon Fresh, Packaging May Vary)

Included for 'Corn Casserole Recipe: Creamy, Easy Side Dish' because the listing specifies Canned Cream Style Corn and 14.75 Oz (Previously Amazon Fresh, details this guide uses to compare options.

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Amazon Grocery, Canned Whole Kernel Corn, 15.25 Oz

Included for 'Corn Casserole Recipe: Creamy, Easy Side Dish' because the listing specifies Canned Whole Kernel Corn and 15.25 Oz, details this guide uses to compare options.

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How to Make This Corn Casserole Recipe

1. Prepare the baking dish

Heat the oven to 350°F (175°C). Grease a 9-by-13-inch baking dish with butter or nonstick cooking spray. A metal dish encourages slightly more browning, while a glass or ceramic dish may need a few extra minutes in the oven.

2. Combine the wet ingredients

Whisk the melted butter, sour cream, eggs, creamed corn, sugar, salt, and pepper in a large bowl. Letting the butter cool briefly matters: very hot butter can partially cook the eggs and create small curds.

3. Add the corn and muffin mix

Fold in the drained whole-kernel corn and corn muffin mix just until no dry streaks remain. Do not beat the batter. A few small lumps are fine, and gentle mixing helps the finished casserole stay soft instead of dense.

4. Add cheese if desired

Stir in 1/2 cup of the shredded Cheddar for a savory casserole, or reserve the entire cup for the top. For a classic creamy-sweet version, leave the cheese out altogether.

5. Bake until set and golden

Spread the mixture evenly in the prepared dish. Sprinkle the remaining cheese over the top if using it. Bake for 40 to 50 minutes, rotating the dish once after 25 minutes if your oven browns unevenly.

The casserole is ready when the center looks set but still has a slight soft jiggle, the edges are puffed, and the top is golden. A knife inserted near the center should come out with moist crumbs rather than loose liquid batter. Rest it for 10 to 15 minutes before serving; this allows the creamy center to firm without drying out.

Make-Ahead Timing and Reheating

To prepare it ahead, mix the casserole, spread it into the greased dish, cover it tightly, and refrigerate for up to 24 hours. If the mixture is cold when it goes into the oven, add 10 to 15 minutes to the baking time. Remove plastic wrap before baking, and use foil only if the top begins browning too quickly.

For the best make-ahead texture, do not freeze the unbaked casserole. Sour cream and the moisture from corn can separate during freezing and thawing, leaving a watery or grainy center.

• Refrigerated leftovers: Cover and use within 3 to 4 days.
• Oven reheating: Cover with foil and heat at 325°F for 15 to 20 minutes, depending on portion size.
• Microwave reheating: Heat individual portions at medium power in 45-second intervals until warm.
• Make-ahead serving: Bake 1 to 2 hours before the meal and keep covered in a warm, switched-off oven only briefly; prolonged heat can dry the edges.

Texture Fixes for Common Problems

Adjusting the Recipe for Different Preferences

For a sweeter casserole

Add the optional tablespoon of sugar and use a mild corn muffin mix. Avoid adding extra sugar beyond this amount unless you also reduce another source of sweetness, since creamed corn and many mixes already contain sugar.

For a more savory casserole

Use sharp Cheddar, add 2 sliced green onions, and replace the sugar with 1/4 teaspoon smoked paprika. Diced jalapeño can add heat, but pat fresh peppers dry first so they do not contribute excess liquid.

For a firmer slice

Use a 9-by-13-inch dish rather than a smaller, deeper dish. The larger surface area allows moisture to evaporate more efficiently. You can also add one extra tablespoon of corn muffin mix, but adding much more may make the casserole bready.

For an especially creamy center

Use full-fat sour cream and remove the casserole from the oven as soon as the center is just set. Low-fat dairy can work, but it generally produces a slightly less rich and less stable texture.

Serving and Cleanup Notes

Serve the casserole warm with roasted vegetables, baked ham, turkey, grilled chicken, or beans. A 9-by-13-inch dish produces eight generous side portions or ten smaller portions when served alongside several other dishes.

Let the dish cool for 10 minutes before washing it. Scrape away any browned residue with a silicone spatula, then soak the baking dish in warm water and dish soap for 15 to 20 minutes. Avoid sudden temperature changes with glass or ceramic bakeware, such as placing a hot dish directly into cold water, because thermal shock can damage it.

Frequently Asked Questions

Can I use fresh corn?

Yes. Use about 3 cups of kernels, preferably cut from 4 to 5 medium ears. Fresh corn contains less added liquid than canned corn, so the result may be slightly firmer and more textured.

Why did my corn casserole fall after baking?

A small amount of settling is normal because the casserole contains eggs and dairy. A dramatic collapse usually means the center was underbaked, the dish was moved too soon, or the mixture contained excess liquid. Resting it before serving helps the structure finish setting.

Can I bake it in a smaller dish?

Use a 2-quart dish if necessary, but expect a deeper casserole and approximately 50 to 60 minutes of baking time. Check the center rather than relying only on the clock, and cover the top if it browns before the middle is done.