This Shredded Mexican Chicken Casserole is one of those cozy, no-fuss dinners that I keep coming back to — especially on hectic weeknights. It’s got that whole “dump-and-bake” ease but still tastes like something you put a lot of thought into. Tender shredded chicken, black beans, corn, and salsa all come together under a bubbly layer of cheese — it’s hearty, satisfying, and the kind of meal that earns you happy silence at the dinner table.
I make this at least twice a month, especially when I’ve got leftover shredded chicken sitting in the fridge or freezer. And the best part? The kids say it tastes like nachos — so no complaints from the picky eaters in my house.
Turning Leftover Chicken into Something Everyone Loves
I love a recipe that starts with leftovers and ends with something the whole family looks forward to. This casserole does exactly that. You start with shredded chicken — homemade, rotisserie, frozen — and turn it into a warm, cheesy dish that disappears fast.
This is usually my go-to on nights when I forget to plan dinner and need something quick. If I’ve already got a stash of shredded chicken in the freezer, dinner’s halfway done. And if not, a store-bought rotisserie chicken saves the day. Honestly, it’s worth keeping a few cups of shredded chicken on hand just for this reason.
Step-by-Step Guide: No Fuss, All Flavor
Here’s how I put it together:
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Measure your chicken: I eyeball about 3 cups, but you can go a little over or under depending on the size of your dish.
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Mix it all up: Combine the shredded chicken with your favorite salsa, canned black beans, corn, and a good sprinkle of seasoning. I usually throw in some cumin and chili powder for that extra depth.
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Assemble the casserole: Spread everything in a dish, cover with shredded cheese (don’t be stingy), and pop it in the oven.
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Bake until golden and bubbly: Once it’s hot all the way through and the cheese is melty, pull it out and top it with a dollop of sour cream and some fresh cilantro or green onions. That fresh garnish really brings it all together.
Real-Life Tips That Make a Difference
Over time, I’ve learned a few things that make this casserole turn out just right, every time.
Choosing the Right Chicken
You’d be surprised how much the flavor depends on the kind of chicken you use. Here are some ways I’ve prepped mine:
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Oven-baked chicken breasts: My default. Bake, cool, shred.
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Stovetop boiled chicken: Fast and easy — great if you’re short on time.
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Slow cooker chicken: Throw in a few boneless thighs in the morning and they’re perfect by dinner.
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Rotisserie chicken: A total lifesaver on crazy days.
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Canned chicken: Only in a pinch. It’ll work, but the texture is never my favorite.
Sometimes I’ll make a big batch of shredded chicken and freeze it in portions. That way, this casserole is practically ready to go whenever I need a backup dinner plan.
Use a Salsa That Packs a Punch
This recipe really depends on a good salsa. If it’s too watery, your casserole ends up soggy. I usually reach for a thick, jarred salsa with bold tomato flavor — something with a little kick is even better. If you’ve got a favorite local brand or a homemade one you love, use that!
Beans and Corn That Work for You
Canned beans and corn are pantry staples in my kitchen — especially for quick dinners like this. I rinse the black beans to cut down the saltiness, and sometimes I swap in fire-roasted corn if I want a bit of smokiness. Frozen corn works great too.
Swaps and Tweaks to Make It Your Own
You can easily make this casserole fit what you’ve got in your kitchen. Here’s what I’ve tried:
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Swap the beans: Pinto beans work just as well as black beans.
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Change up the veggies: Add sautéed onions, bell peppers, or even zucchini if you’ve got them.
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Use salsa verde: For a tangy twist, green salsa or enchilada sauce changes the whole flavor vibe in a good way.
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Different cheeses: Colby Jack is great, but I’ve also used cheddar, Mexican blend, or even a pepper jack for some heat.
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Make it dairy-free: Use plant-based cheese or skip it altogether — it’ll still be good.
This dish is super forgiving — which is why it’s on repeat at our place.
Dietary Adjustments
Need to tweak this to suit your diet? You’re in luck.
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Gluten-Free: Naturally gluten-free — just check your salsa and seasonings to be sure.
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Dairy-Free: Omit the cheese or use a dairy-free alternative, and skip the sour cream on top.
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No legumes or corn? Swap the black beans and corn for chopped bell peppers, cauliflower, or mushrooms.
Freezing and Make-Ahead Tips
This is one of my favorite freezer meals. I usually double the recipe — one for now, one for later.
To freeze before baking:
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Prep the filling and either store in a zip bag or directly in a casserole dish (minus the cheese).
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Freeze flat if it’s in a bag to save space.
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When ready to cook, thaw in the fridge, add cheese on top, and bake as usual.
To freeze after baking:
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Let it cool completely.
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Portion into meal-sized containers and freeze.
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Reheat in the oven or microwave when you need a quick meal.
Great for meal prepping or for gifting to a friend who just had a baby, moved house, or just needs a hot meal without effort.
How We Serve It at Home
This casserole is hearty enough to be a full meal, especially with all the protein and veggies built in. That said, sometimes we’ll serve it with a few easy sides to stretch it a bit:
Favorite Sides:
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Mexican rice
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A quick corn salad with lime and cilantro
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Warm tortillas or tortilla chips
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Guacamole or homemade salsa
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Cornbread (especially with green chilies)
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Or those creamy mashed potatoes with cheddar and green chilies
Sometimes we just scoop it into bowls and top with avocado slices, hot sauce, or crushed tortilla chips — easy and satisfying.

Shredded Mexican Chicken Casserole
This cheesy, flavor-packed chicken casserole is the kind of dinner that disappears fast. It brings together all the cozy flavors of Tex-Mex—chicken, beans, salsa, and cheese—in one easy dish the whole family loves.
Ingredients
- 4 cups cooked, shredded chicken
- 1 cup canned black beans, rinsed
- 1 can (15.25 oz) sweet corn, drained
- 2 cups of your favorite salsa
- 1 ½ cups shredded Colby Jack cheese (or Mexican blend)
- ½ teaspoon garlic powder
- ½ teaspoon ground cumin
- 1 teaspoon salt
Optional Toppings:
- Sour cream
- Guacamole
- Chopped green onions
Instructions
- In a large bowl, mix the shredded chicken with the salsa, corn, black beans, garlic powder, cumin, and salt until everything is nicely combined.
- Spoon the mixture into a casserole dish and spread it out evenly. Sprinkle the shredded cheese generously over the top.
- Bake in a preheated oven at 350°F for 20 to 25 minutes, or until the cheese is bubbling and the casserole is heated through.
- Remove from the oven and let it sit for a couple of minutes before serving. Top with sour cream, guacamole, or green onions if you like.
Nutrition Information:
Yield: 6 Serving Size: 1Amount Per Serving: Calories: 350Total Fat: 16gSaturated Fat: 8gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 95mgSodium: 1382mgCarbohydrates: 17gFiber: 5gSugar: 5gProtein: 34g
Chickenrecipes.blog, occasionally offers nutritional information for recipes contained on this site. This information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although allchickenrecipes.com attempts to provide accurate nutritional information, these figures are only estimates.
Leftovers That Don’t Feel Like Leftovers
When we do have leftovers, this casserole is even better the next day. Here’s how I rework it:
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Quesadillas: Spread some on a tortilla with extra cheese, grill it up, and serve with sour cream.
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Stuffed Shells: Fill cooked pasta shells with the mix, top with enchilada sauce and cheese, and bake.
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Enchiladas: Mix the casserole with some spinach, roll into tortillas, cover with sauce and bake.
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Stuffed Peppers: Fill mini peppers with the mix, sprinkle with cheese, and bake until bubbly.
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Mexican Chicken Salad: Pile on top of chopped romaine with tomatoes, avocado, and ranch. So good.
You can get a few dinners out of this one recipe, especially if you freeze some for later.
This Shredded Mexican Chicken Casserole has been a weeknight hero at my house — easy to throw together, full of bold flavor, and the kind of thing everyone actually eats without a fuss. If you try it, let me know how it goes. I’m always curious how others make it their own.
Try other Shredded Chicken recipes: