Street Corn Chicken Casserole is a creamy, savory weeknight dinner with tender chicken, sweet corn, salty cotija, and a bright lime finish. The top turns lightly browned while the filling stays soft and spoonable, so you can serve it straight from the baking dish.
How to make street corn chicken casserole: Mix cooked chicken and corn with a creamy chili-seasoned sauce, then bake at 375°F for 30 minutes covered and 10 to 15 minutes uncovered. Add the lime and cilantro after baking.
Why You’ll Love It
- A short prep window: If your chicken is already cooked, mixing the filling takes just 5 minutes.
- One baking dish: Everything bakes together, with no stovetop cooking needed.
- Two textures: You get a browned cotija topping over a creamy chicken-and-corn filling.
- A fresh finish: Lime juice and cilantro go on at the end, where you can taste them against the rich sauce.
Ingredient Notes
Cooked chicken is essential here. Have it ready before you start mixing; the oven time is for heating the assembled casserole and browning its top, not for cooking raw chicken breasts from scratch.
Sour cream and mayonnaise make the sauce that coats the chicken and corn. I whisk them with the seasonings before adding anything chunky, so I can see that the sauce is smooth.
Cotija belongs both in the filling and on top. Buy it crumbled or crumble it yourself; you want it spread through the creamy mixture rather than sitting in a few large pieces. I like to set aside the topping portion before I start stirring.
Chili powder, garlic powder, and salt season the sauce, with a little more chili powder scattered over the top. Fresh lime juice and chopped cilantro are finishing ingredients, so keep them separate while you assemble the dish.
Ingredients
- 1 cup sour cream
- 1/3 cup mayonnaise
- 1 1/2 teaspoons chili powder, divided
- 1 teaspoon garlic powder
- 1 teaspoon kosher salt
- 3 cups corn
- 3 cups cooked chicken, diced or shredded
- 1 cup crumbled cotija cheese, divided
- 3 tablespoons chopped fresh cilantro
- 2 teaspoons fresh lime juice
- Cooking spray, for the baking dish
How to Make Street Corn Chicken Casserole
1. Heat the oven. Preheat your oven to 375°F. Get out a 9×13-inch ceramic baking dish and foil so they are ready when you have finished mixing.
2. Mix the sauce. Whisk the sour cream, mayonnaise, 1 teaspoon chili powder, garlic powder, and kosher salt in a large bowl until smooth. Take a look around the sides of the bowl for any streaks of sour cream before you move on.
3. Add chicken and corn. Stir in the thawed corn, cooked chicken, and 2/3 cup crumbled cotija. Turn the mixture until the sauce coats the chicken and corn rather than collecting at the bottom of the bowl.
4. Fill the dish. Coat the 9×13-inch ceramic baking dish with cooking spray, then spread the mixture evenly in it. Sprinkle the remaining 1/3 cup cotija and 1/2 teaspoon chili powder across the top.
5. Bake. Cover the dish with foil and bake for 30 minutes. Uncover and bake for another 10 to 15 minutes, until the top is browned and the edges are bubbling. Check the center with a food thermometer; the casserole must reach 165°F.
6. Finish. Let the casserole cool for 10 minutes, then squeeze the lime juice over it and scatter on the cilantro. Scoop it up while the filling is still warm and creamy.
Do You Need to Char Frozen Corn?
No. Thaw frozen corn, stir it into the cooked chicken and sauce, and let the oven do the cooking. You do not need a skillet step before the casserole goes into the baking dish.
Keep the dish covered for the first 30 minutes, then uncover it for the final 10 to 15 minutes. You are looking for browned cheese on top and bubbling around the edges, not dark, charred corn kernels throughout the filling.
I skip charring when I want this to be an oven-only dinner. The corn stays sweet and tender inside the creamy sauce, while the exposed topping picks up color. Once the dish has cooled for 10 minutes, the lime and cilantro give each scoop a tangy, fresh contrast.
Tips for Success
Why is my casserole watery?
If you use canned corn, liquid from the can can loosen the creamy filling. Drain the corn well before you measure it and add it to the bowl. You should see sauce coating the ingredients, not a pool of liquid beneath them.
Why are there big patches of cheese on top?
Large pieces of cotija are harder to scatter across the dish. Break the cheese into crumbles before adding the topping portion, then distribute it across the surface so each scoop gets some.
Variations
- Use whole Greek yogurt: Swap it for the sour cream if that is what you have. Keep the mayonnaise and the rest of the sauce ingredients as written.
- Use fresh corn: Measure out 3 cups in place of the frozen corn. It goes into the same chicken-and-sauce mixture.
Storage & Reheating
USDA FSIS says to refrigerate leftovers within 2 hours in shallow, covered containers and use them within 3 to 4 days. You can freeze portions, but the mayonnaise and cream sauce may separate after thawing; thaw frozen leftovers in the refrigerator, cold water, or microwave, not on the counter. Reheat in the microwave or oven and check the center with a food thermometer for 165°F; do not reheat leftovers in a slow cooker.
What to Serve With It
This casserole is a full chicken-and-corn dinner on its own. If you are planning another casserole night, try easy chicken burrito casserole or make creamy corn casserole for a corn-focused side. For a different creamy chicken bake, there is Ritz cracker chicken casserole or million dollar chicken casserole. You can also put broccoli rice cheese and chicken casserole or one-pot cheesy chicken broccoli rice casserole on next week’s dinner list.
Frequently Asked Questions
What goes into a chicken and Mexican street corn casserole?
For this baked dish, you combine cooked chicken and corn with sour cream, mayonnaise, chili powder, garlic powder, salt, and cotija. Lime juice and cilantro finish the casserole after it comes out of the oven, rather than being mixed into the sauce.
Is this the same as five-ingredient corn casserole?
No. This is a chicken-and-corn main dish with a creamy seasoned sauce, cotija, lime, and cilantro. The name describes its street-corn flavors, not an ingredient count.
Can I use shredded chicken instead of diced chicken?
Yes. Use 3 cups of cooked chicken either way. Shredded pieces will mix through the corn and sauce, while diced pieces remain more distinct in each scoop.
Final Notes
Keep your foil close by when you start, so the filled baking dish can go straight into the oven. If you have a question or make this for dinner, tell me how it turned out in the comments.
Street Corn Chicken Casserole
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Ingredients
- 1 cup sour cream
- 1/3 cup mayonnaise
- 1 1/2 teaspoons chili powder Divided.
- 1 teaspoon garlic powder
- 1 teaspoon kosher salt
- 3 cups corn Frozen and thawed, or fresh.
- 3 cups chicken Cooked; diced or shredded.
- 1 cup cotija cheese Crumbled and divided: 2/3 cup for the filling and 1/3 cup for the topping.
- 3 tablespoons cilantro Fresh and chopped.
- 2 teaspoons lime juice Fresh; add after baking.
- cooking spray For the baking dish.
Instructions
- Preheat the oven to 375°F. Get out a 9x13-inch ceramic baking dish and foil.
- Whisk the sour cream, mayonnaise, 1 teaspoon chili powder, garlic powder, and kosher salt in a large bowl until smooth.
- Stir in the thawed corn, cooked chicken, and 2/3 cup crumbled cotija until coated.
- Coat the 9x13-inch ceramic baking dish with cooking spray. Spread the mixture evenly in it, then sprinkle with the remaining 1/3 cup cotija and 1/2 teaspoon chili powder.
- Cover with foil and bake for 30 minutes. Uncover and bake another 10 to 15 minutes, until the top is browned and the edges are bubbling. Check the center with a food thermometer; the casserole must reach 165°F.
- Let cool for 10 minutes, then add the lime juice and cilantro and serve.
