This easy cheesy corn casserole recipe combines sweet whole-kernel corn, creamy corn, sour cream, melted butter, corn muffin mix, and sharp cheddar cheese in one comforting dinner side dish. Stir everything together in about 10 minutes, bake it at 350°F for 45–50 minutes, and let it rest for 5–10 minutes before serving.
The finished casserole is soft, rich, buttery, and wonderfully cheesy, with golden edges and a tender center that tastes like a cross between creamed corn and homemade cornbread. It is a reliable choice for weeknight dinners, holiday tables, potlucks, and any meal that needs a warm dish everyone will want seconds of.
Jump to RecipeWhy You’ll Love This Recipe
This cheesy corn casserole is the kind of dinner recipe that earns a permanent place in your meal rotation. It uses easy-to-find pantry and refrigerator staples, requires only one mixing bowl, and does not need complicated preparation or special cooking equipment.
The texture is especially appealing. Cream-style corn and sour cream keep the inside moist, while corn muffin mix gives the casserole enough structure to slice or scoop neatly. Melted butter adds richness, and sharp cheddar brings a savory, pleasantly salty finish that balances the natural sweetness of the corn.
You can serve it beside roasted chicken, baked ham, meatloaf, turkey, or a simple green salad. If your family enjoys comforting baked dinners, you may also like this cheesy sausage tater tot casserole for another hearty option.
Ingredients You’ll Need
Each ingredient has a practical role in creating the casserole’s creamy, tender texture. Measure the ingredients as listed for the most dependable result.
- Whole-kernel corn: Two drained cans provide juicy kernels and plenty of corn flavor. Drain them thoroughly in a colander before mixing.
- Cream-style corn: One can supplies moisture and a naturally creamy base without requiring a separate sauce.
- Corn muffin mix: An 8 to 8½-ounce box gives the casserole a gentle cornbread-like structure and subtle sweetness.
- Sour cream: One cup adds tang, richness, and tenderness.
- Unsalted butter: Half a cup of melted butter creates a luxurious texture and helps the edges turn golden.
- Sharp cheddar: One cup is divided between the batter and the topping, so cheesy flavor runs throughout the dish and across the surface.
- Egg, salt, and pepper: These are optional. The egg creates a firmer, more bread-like casserole, while the small amounts of salt and pepper sharpen the flavor.
For a dinner menu built around comforting baked dishes, pair this corn casserole with our easy turkey casserole. The creamy corn is a pleasant contrast to the savory turkey filling.
How to Make It Step-by-Step
Step 1: Heat your oven to 350°F (175°C), then grease a 9-inch square or 2-quart baking dish. Use a light coating of butter or nonstick spray, paying attention to the corners so serving stays easy after baking.
Step 2: Drain the two cans of whole-kernel corn very well. Let the kernels sit in the colander for a moment, and gently shake away extra liquid because too much moisture can leave the casserole loose or gummy.
Step 3: Add the drained corn, cream-style corn, corn muffin mix, sour cream, and melted butter to a large mixing bowl. Add the optional egg, salt, and black pepper at this stage if you want a firmer texture and a little extra seasoning.
Step 4: Stir the mixture until the muffin mix is moistened and the ingredients are evenly combined. Avoid beating the batter aggressively; a few small lumps are fine, and gentle mixing helps preserve the casserole’s soft texture.
Step 5: Fold in ½ cup of the shredded cheddar cheese. This portion melts into the corn mixture, giving each spoonful a savory cheese flavor instead of leaving all the cheese only on top.
Step 6: Pour the mixture into the greased baking dish and spread it into an even layer. Sprinkle the remaining ½ cup of cheddar over the surface, taking the cheese close to the edges for a golden, inviting finish.
Step 7: Bake for 45–50 minutes, checking near the end of the baking range. The casserole is ready when the center looks set and the top is lightly golden; it should not appear wet or fluid in the middle.
Step 8: Let the casserole stand for 5–10 minutes before scooping. This short rest allows the center to firm, helps the flavors settle, and keeps each serving creamy rather than runny.
Pro Tips for the Best Corn Casserole
The most important preparation tip is to drain the whole-kernel corn thoroughly. Canned corn can carry more liquid than expected, and that extra water changes the balance of the batter. Cream-style corn already contributes plenty of moisture, so there is no need to compensate with additional liquid.
Use melted butter that has cooled slightly before adding it to the bowl. It should remain liquid, but it should not be piping hot. This makes it easier to combine with the sour cream and optional egg without creating uneven pockets in the mixture.
Shred cheddar from a block when possible for the smoothest melt and best flavor. Pre-shredded cheese also works, but freshly shredded sharp cheddar usually gives the top a more appealing texture and a fuller cheese taste.
Do not judge doneness only by the color of the top. The center should be just set, and the casserole will continue firming during its 5–10 minute rest. If you bake it too long, the edges may become dry before the middle has a chance to finish gently.
For a deeper golden top, use the broiler for 1–2 minutes at the very end. Watch closely the entire time because shredded cheddar can go from beautifully browned to burnt quickly.
If you are planning a larger comfort-food spread, this cheesy stuffing casserole makes a fitting companion. Both dishes can share the oven and bring soft, savory textures to the table.
What to Serve With It
This casserole is filling enough to be the starch on a dinner plate, but its sweet corn flavor also works as a side dish for a wide range of main courses. Serve it with roasted chicken and steamed green beans for a simple family dinner, or add it to a holiday table with turkey, gravy, and cranberry sauce.
For a casual meal, spoon it next to pulled pork, grilled sausages, or baked meatloaf. The creamy interior pairs especially well with crisp salads and roasted vegetables because the fresh sides add color and contrast.
It can also be part of a brunch-style dinner. Serve small portions with fruit and eggs, or take inspiration from this spinach and egg casserole when planning a relaxed breakfast-for-dinner menu.
Storage and Reheating
Allow leftovers to cool, then cover the baking dish or transfer portions to an airtight container. Refrigerate promptly and enjoy within a few days for the best texture and flavor.
Reheat individual portions gently in the microwave until warm, or cover the baking dish and warm it in a moderate oven. Avoid overheating, since the cheddar and sour cream can lose their smooth texture when cooked too aggressively.
If you are making the casserole for a gathering, bake it close to serving time whenever possible. The rest period is helpful, but the dish is at its creamiest and most inviting while it is still warm.
For another family-friendly baked dinner idea, try this cheesy tater tot casserole. It brings a crisp potato topping to the table while this corn casserole offers a softer, buttery bite.
Easy Cheesy Corn Casserole
Ingredients
Method
- Heat the oven to 350°F (175°C) and grease a 9-inch square or 2-quart baking dish.
- In a large bowl, stir together the drained whole-kernel corn, cream-style corn, corn muffin mix, sour cream, melted butter, and the optional egg. Add the optional salt and black pepper if desired.
- Fold in ½ cup of the shredded sharp cheddar cheese, mixing just until evenly distributed.
- Transfer the mixture to the prepared baking dish and spread it into an even layer. Sprinkle the remaining ½ cup of cheddar over the top.
- Bake for 45–50 minutes, until the center is set and the top is lightly golden. Let the casserole stand for 5–10 minutes before serving.
Notes
Final Thoughts
This easy cheesy corn casserole is a dependable recipe for anyone who wants maximum comfort with minimal effort. The combination of whole corn, cream-style corn, corn muffin mix, sour cream, butter, and cheddar creates a dish that is creamy in the center, golden around the edges, and full of familiar homemade flavor.
Remember the key details: drain the whole corn well, mix gently, bake at 350°F for 45–50 minutes, and let the casserole rest for 5–10 minutes before serving. Add the optional egg when you prefer a firmer, more bread-like texture, and use the brief broiler finish only when you want extra color on top.
Bring this casserole to your next dinner, potluck, or holiday gathering, and serve it while warm. It is simple enough for a weeknight yet special enough to make the meal feel complete.
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