Southwest Chicken Quinoa Casserole (Simple & Budget-Friendly)

Looking for a hearty family-friendly meal made in one dish with savory Tex-Mex flavors? If you say “Yes, please!”, then this Southwest Chicken Quinoa Casserole is for you! It comes together quick and makes a nutritiously complete meal. Just add your favorite toppings and watch it disappear.

The Ultimate Make-Ahead Meal

Imagine a flavorful, nutritious meal that’s made all in one casserole dish that can be made ahead and reheated for an ultra-quick dinner or weekday lunches. This is that chicken casserole.

This Southwest chicken casserole with quinoa requires only 20 minutes of hands-on prep time, just like our Chicken Pot Pie Casserole recipe. This King Ranch Casserole takes just a smidge longer to prep but it’s worth the extra 5 minutes! The rest of the time it’ll be tucked away in the oven baking to perfection while you tidy up the kitchen and move on to other things. To speed up prep on busy weeknights, spend a little time on the weekend chopping the vegetables, cooking and dicing the chicken (use our easy, no fail method for perfectly cooked chicken breasts), and measure out the spices. Then all you have to do is combine, mix, cover, and bake this quinoa casserole when you’re ready.

Ingredients to Make Southwest Chicken Casserole

While this ingredient list may look long, have no fear. Many of the ingredients are ones that you likely already have on hand in your pantry or freezer, like everyday spices, canned goods, and frozen veggies.

• Cooked Chicken – Leftover cooked chicken or rotisserie chicken are great shortcuts for this recipe. If starting with raw chicken, check out our recipe for How to Make the Perfect Chicken Breast or this Instant Pot Shredded Chicken Recipe (skip the shredding and dice instead)
• Quinoa – This chicken casserole uses dry (uncooked) quinoa – no need to cook it first!
• Bell pepper – Any color of bell pepper will work
• Jalapeño – Remove the seeds and membranes for less heat or omit, if desired
• Frozen cauliflower rice – No need to thaw first, just toss it in the pan and stir. Why cauliflower rice? It’s a great way to sneak in some veggies while keeping the carbs balanced and the moisture it gives off during baking helps make that quinoa nice and tender
• Frozen corn – No frozen corn? Substitute drained canned corn instead
• Canned Black beans – These are quick and easy shortcut in this recipe. Drain and rinse them under cool, running water to remove much of the added sodium if not using a brand without added salt
• Diced green chiles
• Canned diced tomatoes – Look for fire-roasted diced tomatoes to add extra flavor to this Southwest chicken casserole
• Tomato sauce – Look for ‘no added salt’ tomato sauce to reduce the sodium content
• Water or chicken broth – Use store-bought broth or make your own using our super easy and economical using our Instant Pot Bone Broth Recipe and Photo Tutorial
• Chili Powder – Thrive Market has the best price on one of the most flavorful chili powders we’ve ever tried. Don’t sleep on this one!
• Ancho chili powder – Ancho chili powder gives this dish a bit of a kick. If you prefer a milder option, replace it with additional chili powder
• Garlic powder
• Ground cumin
• Onion powder
• Dried Oregano
• Smoked paprika or regular paprika
• Shredded Cheese – We suggest either Colby jack, Monterey jack, cheddar cheese, or a “Mexican” blend that combines several types of flavorful cheeses. To make this casserole dairy-free, use your favorite vegan or dairy-free cheese alternative shreds
• Optional toppings for serving: sour cream, salsa, chopped fresh cilantro, green onion, jalapeño slices, fresh lime wedges, sliced or diced avocado, etc.

Ingredient Spotlight: Quinoa

Quinoa is a nutrient-dense, gluten-free pseudo cereal, meaning the seeds of the plant are prepared and enjoyed much like a grain (similar to buckwheat and amaranth). There are many kinds, including red, black, and white. Quinoa is a good source of many important nutrients including zinc, folate, magnesium, iron, and copper. It’s also rich in protein and fiber which can help you stay satisfied longer.

See More Quinoa Recipes Here

Simple Directions for This Healthy Chicken Casserole

This casserole comes together so quickly with these three steps:

1. Preheat the oven to 375℉ then prepare a large glass or ceramic baking dish by spraying with cooking spray. Set aside.
2. Add the cooked diced chicken, seasonings, quinoa, tomatoes, tomato sauce, water, bell pepper, jalapeño, black beans, frozen cauliflower rice, corn, green chiles, and about 1 ¼ cup of cheese and stir well to combine. That’s right, add it all to the dish. Don’t be shy.
3. Tightly cover the baking dish with aluminum foil and bake for 50-60 minutes or until the quinoa is tender. Remove the foil and sprinkle with the remaining cheese. Bake again, uncovered, until the cheese is melted then remove the Southwest chicken casserole from the oven and let stand for 15 minutes before serving with the toppings of your choice.

Our Favorite Baking Dish Set

As beautiful and it is functional, this 3-piece baking dish set gives you plenty of options, making it the perfect handy helper set for any kitchen.

Staub Baking Dish Set

For the complete directions, ingredient amounts, and nutrition analysis that lists calories, protein, carbohydrates, fiber, sugar, sodium per serving, scroll down to the recipe card below.

How to Store This Casserole

Store any leftovers in an airtight container in the refrigerator for up to 4 days. May be frozen for up to 3 months for longer storage.

Shop Glass Storage Containers

More Easy Casseroles To Try

Healthy Taco Casserole (Easy and Budget Friendly)

Pepperoni Pizza Quinoa Casserole (Easy & So Good)

Chipotle Quinoa Casserole with Chicken

Easy Cheesy Scalloped Potatoes (With GF and Dairy-Free Options)

See All Dinner Recipes

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Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 28 reviews

Southwest Chicken Quinoa Casserole

This family-friendly Southwest Chicken Quinoa Casserole comes together quick and is a complete meal when served with your favorite toppings. 

Prep: 20 mins.Cook: 55 mins.Total: 1 hr, 15 mins

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Servings: Serves 8

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Ingredients

• Cooking spray
• 1 lb. boneless, skinless chicken, cooked and diced* (about 2 – 2 ½ cups cooked)
• 2 teaspoons chili powder 
• ½ teaspoon ancho chili powder or an additional ½ teaspoon chili powder for less heat
• 1 ½ teaspoons garlic powder
• 1 teaspoon ground cumin
• ½ teaspoon onion powder
• ½ teaspoon dried oregano
• ½ teaspoons smoked paprika or regular paprika
• 1 teaspoon fine salt
• ½ cup dry quinoa (uncooked) 
• 1 (14-oz) can fire-roasted canned tomatoes
• 1 (8-oz) can tomato sauce
• 1 cup water or low-sodium chicken broth
• 1 medium bell pepper, diced (any color) 
• 1 jalapeno, seeds and membranes removed, diced (omit for less heat)
• 1 (10- oz) bag frozen cauliflower rice
• 1 (15-oz) can black beans, drained and rinsed or (may sub 1 ½ cups cooked lentils)
• 1 ½ cups frozen corn
• 1 (4-ounce) can diced green chiles
• 8 ounces (one block or bag) shredded colby jack or cheddar cheese (2-2 ½ cups), divided
• Optional toppings: sour cream, salsa, chopped fresh cilantro, green onion, jalapeño slices, fresh lime wedges, sliced or diced avocado, etc.

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Instructions

1. Preheat the oven to 375℉. Spray a 9×13-inch glass baking dish with cooking spray and set aside. 
2. To the baking dish, add the diced chicken, seasonings, quinoa, tomatoes, tomato sauce, water, bell pepper, jalapeño, black beans,  frozen cauliflower rice, corn, green chiles, and about 1 ¼ cup of cheese and stir well to combine.
3. Cover the baking dish tightly with aluminum foil and bake for 50-60 minutes or until the quinoa is tender.
4. Remove the foil from the baking dish and sprinkle the top with the remaining cheese and bake for an additional 3-5 minutes or until the cheese has melted. Remove from the oven and let it stand for 15 minutes. Serve with optional toppings.
5. Store any leftovers in an airtight container in the refrigerator for up to 4 days. May be frozen for longer storage. 

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Notes

* May substitute rotisserie chicken, if desired. Or use our recipe for perfect chicken breasts on the stovetop or Easy Instant Pot Shredded Chicken.  

Nutrition Information

• Serving Size: 1/8 recipe
• Calories: 330
• Fat: 12 g
• (Sat Fat: 6 g)
• Sodium: 690 mg
• Carbohydrate: 30 g
• (Fiber: 7 g
• Sugar: 6 g)
• Protein: 27 g
• Cholesterol: 150 mg

Dietary

Egg-FreeGluten-freeNut-free

© The Real Food Dietitians

Recipe By: Jessica Beacom

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The photos in this blog post were taken by Rachel Cook of Half Acre House.

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