Creamy Corn Casserole for Thanksgiving

Creamy Corn Casserole for Thanksgiving is a comforting side dish that’s sweet, soft, and just a little bit cheesy. It combines whole corn kernels with creamy ingredients like sour cream…

By Ashley • October 4, 2025 • Reading time: 6 min

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Creamy Corn Casserole for Thanksgiving is a comforting side dish that’s sweet, soft, and just a little bit cheesy. It combines whole corn kernels with creamy ingredients like sour cream and melted cheese, all baked into a golden, bubbly casserole that everyone will want seconds of. The texture is smooth with a slight bite from the corn, making it a perfect balance to soak up all the flavors on your Thanksgiving plate.

I love making this casserole because it’s so simple but feels extra special, especially during holiday meals. I usually prep it ahead of time, which takes a bit of stress off the big day. Plus, it’s a crowd-pleaser—my family always asks me to bring this one. I’ve found that using fresh corn if you can helps the dish taste brighter, but canned works just fine and saves time.

My favorite way to serve this creamy corn casserole is right alongside turkey and mashed potatoes. It’s like a cozy hug of sweetness and creaminess that pairs beautifully with savory flavors. Sometimes, I even add a little extra grated cheese on top before baking to get a nice golden crust, which everyone loves to scoop up. If you’re looking for a warm, easy, and tasty Thanksgiving side, this dish hits all the right notes.

Key Ingredients & Substitutions

Corn Kernels: Fresh corn gives the best flavor and a juicy bite, but frozen or canned corn works perfectly well. Just drain canned corn well to avoid extra liquid in the casserole.

Sour Cream: This is what makes the casserole creamy and tangy. If you need a dairy-free version, plain coconut yogurt or vegan sour cream can be a good swap.

Corn Muffin Mix: This mix adds the right texture and a touch of sweetness. If you don’t have corn muffin mix, you can use cornmeal combined with all-purpose flour and a little baking powder.

Cheddar Cheese: Optional, but I love adding shredded cheddar for extra creaminess and a mild sharp flavor. For a different taste, try Monterey Jack or mozzarella. For a dairy-free option, omit or use a plant-based cheese.

Butter & Heavy Cream: Melted butter adds richness, and cream helps keep the casserole smooth. Milk can be used instead of cream for a lighter version.

How Can I Make Sure My Corn Casserole Is Creamy and Not Dry?

The key to creamy corn casserole is balancing moisture and baking time. Here’s how to get it right:

• Mix ingredients gently: Combine everything until just mixed to keep the texture light and creamy.
• Don’t overbake: Bake until the edges are golden, but the center is just set. Overbaking makes it dry.
• Drain canned corn well: Excess liquid can make the casserole soggy. Pat frozen corn dry if needed.
• Use sour cream or cream: These ingredients add moisture and richness that keep the casserole soft.
• Let it rest: Allowing the casserole to cool for about 5 to 10 minutes helps it set and makes it easier to serve without falling apart.

Equipment You’ll Need

• Mixing bowl – big enough to hold all ingredients and mix comfortably.
• Measuring cups and spoons – helps keep the right balance of wet and dry ingredients.
• Whisk or spoon – to blend everything smoothly without overmixing.
• 2-quart baking dish or 8-inch square pan – perfect size for even baking and golden edges.
• Oven mitts – essential for safely handling the hot dish when it comes out of the oven.

Flavor Variations & Add-Ins

• Stir in cooked crumbled bacon for a smoky, salty twist that pairs well with the sweetness of corn.
• Add diced jalapeños or a pinch of cayenne pepper if you like a little heat and extra flavor.
• Mix in chopped green onions or chives for a fresh, mild onion note that brightens the dish.
• Replace cheddar with pepper jack or mozzarella to change the cheese flavor and meltiness.

Creamy Corn Casserole for Thanksgiving

Ingredients You’ll Need:

Main Ingredients:

• 4 cups fresh or frozen corn kernels (or 2 cans, drained)
• 1 cup sour cream
• 1/2 cup unsalted butter, melted
• 1 (8.5 oz) package corn muffin mix (like Jiffy)
• 1 cup shredded cheddar cheese (optional for extra creaminess)
• 1/4 cup heavy cream or whole milk
• 1 tablespoon sugar (optional, enhances sweetness)
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1/2 teaspoon baking powder (if you want a lighter texture)
• Fresh parsley or thyme for garnish (optional)

How Much Time Will You Need?

This casserole takes about 10 minutes to prepare and around 45 to 50 minutes to bake. After baking, let it rest for 5 to 10 minutes before serving. Overall, plan for about 1 hour from start to finish.

Step-by-Step Instructions:

1. Prepare Your Oven and Dish:

Preheat your oven to 350°F (175°C). Lightly grease a 2-quart baking dish or an 8-inch square pan to prevent sticking.

2. Mix the Base Ingredients:

In a large bowl, combine the corn kernels, sour cream, melted butter, and heavy cream. Stir well to mix everything smoothly.

3. Add Dry Ingredients and Cheese:

Stir in the corn muffin mix, sugar, salt, pepper, and baking powder if you choose to use it. Mix gently until just combined, then fold in the shredded cheddar cheese if desired.

4. Bake the Casserole:

Pour the mixture evenly into your prepared baking dish. Bake uncovered for 45 to 50 minutes or until the top is golden and a knife inserted into the center comes out mostly clean.

5. Rest and Garnish:

Remove the casserole from the oven and allow it to cool for about 5 to 10 minutes. Garnish with fresh parsley or thyme, if you like, to add a touch of color and mild herb flavor.

6. Serve and Enjoy!

Serve warm alongside your Thanksgiving turkey, mashed potatoes, or other favorite sides. Enjoy the creamy, sweet, and cheesy goodness!

Can I Use Frozen or Canned Corn Instead of Fresh?

Yes! Frozen corn works well—just thaw and drain any excess water before using. For canned corn, drain thoroughly to avoid adding extra liquid that could make the casserole soggy.

Can I Prepare This Casserole Ahead of Time?

Absolutely! You can mix all the ingredients and refrigerate the casserole dish covered for up to 24 hours. When ready, bake it as directed, adding a few extra minutes if it’s chilled.

How Should I Store Leftovers?

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave until warmed through, stirring halfway when microwaving.

Can I Make This Recipe Dairy-Free?

Yes! Substitute sour cream and butter with dairy-free alternatives like vegan sour cream and plant-based butter. Use your favorite non-dairy milk instead of heavy cream.