Chicken Burrito Casserole, One Pan Meal Prep

This is my go-to chicken burrito casserole meal prep recipe, and it never lets me down.

Burritos are great until you’re the one wrapping enough of them for a week of lunches. This casserole solves that problem by baking everything you’d normally roll into a tortilla, rice, shredded chicken, beans, vegetables, straight into one dish, finishing it under a layer of melted cheese.

It leans on already-cooked chicken, which makes it a genuinely easy way to use up leftovers or a store-bought rotisserie chicken, and it holds up beautifully as meal prep for the week ahead.

Why You’ll Love This

It’s a true one-pot meal, something you can assemble, walk away from, and let the oven finish. It’s well-balanced with carbohydrates, protein, and fat all built in, and packed full of rice, beans, and vegetables, it works equally well as a simple weeknight dinner or a batch of meal-prepped lunches.

Why This Works

Using already-cooked, shredded chicken rather than raw is what keeps the bake time reasonable and the chicken from drying out — raw chicken would need considerably longer in the oven, by which point the rice would likely be overcooked. And covering the dish while the rice cooks in the broth traps the steam needed to fully hydrate the grains; leaving it uncovered lets that moisture escape too quickly, which is the most common reason this style of casserole ends up with undercooked rice.

How to Make Chicken Burrito Casserole

Step 1: Preheat and Prep

Preheat your oven to 375°F. Lightly grease a 9×13-inch baking dish.

Step 2: Combine the Base

In a large bowl, combine the uncooked rice, shredded chicken, black beans, corn, diced tomatoes, taco seasoning, and half the cheese. Mix well.

Step 3: Add Liquid

Pour in the chicken broth, stirring to combine everything evenly.

Step 4: Assemble and Bake

Transfer the mixture into the prepared baking dish, spreading it out evenly. Cover tightly with foil and bake for 45 to 50 minutes, until the rice is tender.

Step 5: Add the Remaining Cheese

Remove the foil, sprinkle with the remaining cheese, and return to the oven uncovered for another 5 to 10 minutes, until the cheese is melted and bubbly.

Step 6: Rest and Serve

Let the casserole rest for a few minutes before serving, topping with your favorite garnishes.

Tips for the Best Results

• Use already-cooked chicken — leftover roast chicken or a store-bought rotisserie chicken both work great and save prep time.
• Keep the dish tightly covered while the rice cooks, since trapped steam is what fully hydrates the grains.
• If the rice is still a bit firm after the covered bake time, add a splash more broth, re-cover, and continue baking.
• Watch your portions if serving this as a lower-calorie meal, since rice, beans, and cheese add up quickly — a side salad helps round out the plate.
• Top with fresh tomatoes, avocado, black olives, or crumbled tortilla chips for extra texture and freshness.

Variations to Try

This recipe also works well made in an Instant Pot, then transferred to a casserole dish and topped with cheese to melt under the broiler or a covered dish. Swap the black beans for pinto beans, or add diced bell peppers and onion for extra vegetables. Ground turkey works in place of chicken if that’s what you have.

What to Serve With It

A simple tossed salad rounds out the plate nicely and balances the richness of the casserole. Tortilla chips on the side are a fun, crunchy addition if you want to eat it more like a nacho bowl.

Storage and Reheating

Let the casserole cool, then transfer to an airtight container and refrigerate for 3 to 4 days. For longer storage, portion into individual freezer-friendly containers and freeze for up to 3 months. Thaw overnight in the fridge and reheat in the oven when ready to eat.

FAQ

Can I make this in an Instant Pot?

Yes, cook the ingredients the same way in the Instant Pot, then transfer to a casserole dish, top with cheese, and cover to let the residual heat melt it.

Why is my rice undercooked after baking?

This usually means the dish wasn’t covered tightly enough, letting steam escape. Add a splash more broth, cover securely, and continue baking.

Can I use rotisserie chicken?

Yes, rotisserie chicken or any leftover cooked chicken works perfectly and saves prep time.

Is this recipe gluten-free?

Yes, as written it’s naturally gluten-free — just double-check your taco seasoning and broth labels to be sure.

How long does this casserole keep?

Up to 3-4 days in the fridge, or up to 3 months frozen in individual portions.