Mexican Chicken and Rice Casserole (Dump-and-Bake) | CookOS

Mexican Chicken and Rice Casserole

Name: Mexican Chicken and Rice Casserole (Dump-and-Bake)
Prep time: 5 min
Cook time: 50 min
Total time: 55 min
Yield: 6 servings
Cuisine: Tex-Mex
Ingredients: 2 (5.5 oz) bags taco-flavored rice mix; 1 lb cooked pulled rotisserie chicken; 2 (10 oz) cans diced tomatoes and green chilies, undrained; 1 (15 oz) can black beans, drained and rinsed; 2 (10.5 oz) cans chicken broth; 2 cups shredded Mexican blend cheese; Sour cream, for topping; Pickled jalapeño slices, for topping

This Mexican chicken and rice casserole is a no-fuss dump-and-bake meal that combines taco-flavored rice, rotisserie chicken, black beans, and diced tomatoes in one baking dish, topped with melted cheese and ready to serve in under an hour.

🌍Tex-Mex 🏷️Casserole 🏷️Dump-and-bake 🏷️Chicken 🏷️Rice

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Total

55 min

Servings

Difficulty

Easy

Est. Cost

$17–$28

Recipe Source

View original recipe

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Ingredients

2 (5.5 oz) bags taco-flavored rice mix
1 lb cooked pulled rotisserie chicken
2 (10 oz) cans diced tomatoes and green chilies, undrained
1 (15 oz) can black beans, drained and rinsed
2 (10.5 oz) cans chicken broth
2 cups shredded Mexican blend cheese
Sour cream, for toppingoptional
Pickled jalapeño slices, for toppingoptional

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Instructions

1
Preheat your oven to 350°F (175°C).
2
In a 13x9 inch baking dish, dump in the two bags of taco rice mix.
3
Add the cooked, pulled rotisserie chicken on top of the rice.
4
Pour in the two cans of diced tomatoes and green chilies.
5
Add the drained and rinsed black beans.
6
Pour the two cans of chicken broth over everything.
7
Stir all the ingredients together in the baking dish, making sure the rice is fully submerged in the liquid.
8
Bake uncovered for 40 minutes.
9
Carefully remove the casserole from the oven and sprinkle the shredded Mexican cheese evenly over the top.
10
Return the dish to the oven and bake for another 10 minutes, or until the cheese is fully melted and bubbly.
11
Serve hot, topped with sour cream and pickled jalapeños if desired.

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Tips & Notes

Pro tips

Do not skip draining and rinsing the black beans—excess liquid will make the casserole watery.
Use chicken broth measured precisely; too much liquid prevents the rice from absorbing properly and keeps the casserole soupy.
Stir the casserole gently halfway through baking to ensure even cooking of the rice, but do not overmix once cheese is added.
Let the casserole rest 5 minutes after baking before serving so the cheese sets slightly and serving spoons cleanly.

Substitutions

Taco-flavored rice mix → Spanish rice mix or plain long-grain white rice plus 2 tsp cumin, 1 tsp chili powder, and ½ tsp garlic powder (adjust broth as needed)
Diced tomatoes and green chilies → 2 cans plain diced tomatoes plus 1 (4 oz) can diced green chilies
Black beans → Pinto beans or kidney beans (drained and rinsed)
Chicken broth → Vegetable broth or salsa (use 1.5 cups salsa + 0.5 cup broth to maintain moisture balance)

Storage & make-ahead

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat covered in a 350°F oven for 15–20 minutes until warmed through, or microwave individual portions for 1–2 minutes.

Common Questions

Can I use fresh cooked chicken instead of rotisserie chicken?

Yes. Use 1 lb of shredded or diced cooked chicken (from poached breasts or home-cooked meat). The cooking time remains the same.

How long does this casserole take to bake?

Typically 25–35 minutes at 350°F, until the rice is tender and the cheese is melted and lightly golden on top.

Can I make this casserole ahead?

Yes. Assemble the casserole in the baking dish, cover with foil, and refrigerate up to 24 hours. Add 5–10 minutes to baking time if baking directly from cold.

What can I substitute for Mexican blend cheese?

Monterey Jack, sharp cheddar, or a mix of cheddar and Oaxaca cheese work well. Aim for 2 cups shredded.

Is this recipe freezer-friendly?

Yes. Freeze the unbaked casserole (covered) for up to 3 months. Thaw overnight in the fridge, then bake as directed, adding a few extra minutes if needed.