Southwest Baked Quinoa

VegetarianDairy-FreeGluten FreeMain Courses

By Kristen Chidsey

5 from 1 vote

Mar 02, 2026

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This Southwest Baked Quinoa is a true dump-and-bake dinner made with fluffy quinoa, tender sweet potatoes, earthy black beans, and Tex-Mex spices. It uses budget-friendly ingredients, takes just minutes to assemble, and is both filling and nourishing.

With similar flavors to my Black Bean Sweet Potato Chili, this one-pot dinner recipe is packed with fiber and plant-based protein. Serve it straight from the pan or stuffed into a tortilla for an easy and satisfying meal.

Baked quinoa with sweet potatoes, black beans, and diced tomatoes in white dish topped with avocado and minced cilantro and lime on the side.

Kristen's Keys for Baked Quinoa

Before you toss everything into your baking dish, a few small details make the difference between fluffy quinoa and a mushy situation.

  • Rinse the quinoa well. Quinoa has a natural coating called saponin that can taste bitter. Even if your bag of quinoa says pre-rinsed, I highly recommend giving the quinoa a good rinse under cold water before adding to your baking dish.
  • Dice the sweet potatoes small and evenly. This ensures they cook through in 45 minutes. Larger chunks will still be crunchy -- and not in a good way.
  • Use a deep baking dish. An 8x8 or 2-quart dish keeps the quinoa from drying out. A shallow dish will work, but will require less bake time and closer monitoring.
  • No peeking while the quinoa bakes. Removing the foil during the baking process releases moisture that is key to fluffy quinoa.

How to Make Southwest Baked Quinoa

Dump, mix, and let the oven do the work. Just don't skip finishing the dish with the zest and juice of a lime to brighten up all the flavors.

Step One: Prep Ingredients

Rinse the quinoa, drain the beans, and peel and cube the sweet potatoes into ½-inch cubes.

Step Two: Combine

Add the prepared quinoa, beans and sweet potatoes to the baking dish. Add diced tomatoes, seasonings, and broth. Stir together until the quinoa is evenly distributed.

Quinoa with cubed sweet potatoes, canned black beans, diced tomatoes, vegetable broth, and taco seasoning in white dish before baking.

Step Three: Bake

Cover tightly with foil and bake for 45 minutes undisturbed. Remember, no peeking!

After 45 minutes, remove the dish from the oven, carefully remove the foil, stir, then return the pan to the oven and bake, uncovered, for an additional 10 minutes, or until the quinoa is tender.

Step Four: Finish with Flavor

Remove from the oven, add the zest and juice of a fresh lime, and fluff with a fork. Let the dish rest for 5-10 minutes before serving so any remaining liquid can absorb.

Baked Quinoa with cubed sweet potatoes, canned black beans, diced tomatoes, vegetable broth, and taco seasoning

Serving Suggestions

You can serve this Southwest Quinoa as is or top like you would your favorite tacos with with cheese, cilantro, avocado, sour cream, or even a handful of crushed tortilla chips for added texture.

I love using leftovers as the filling for burritos. Add some shredded cabbage and guacamole and WOW! Such a satisfying lunch.

Recipe Modifications

  • Add More Protein: Stir in cooked diced or shredded chicken or leftover taco meat before baking.
  • Boost the Veggies: Add diced bell peppers or frozen corn kernels for extra color and nutrition. Sometimes I like to fold in baby spinach along with the lime.
  • Use Rotel Tomatoes: Rotel tomatoes typically come in 10-ounce cans and this recipe calls for one 15-ounce can of diced tomatoes with green chiles. Use 1½ cans to equal 15 ounces. Choose mild or hot depending on your family's heat tolerance.

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5 from 1 vote

Southwest Baked Quinoa

By: Kristen Chidsey
Servings: 4
Prep: 10 minutes
Cook: 55 minutes
Resting Time: 5 minutes
Total: 1 hour 10 minutes
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Baked quinoa with sweet potatoes, black beans, and diced tomatoes in white dish topped with avocado and cilantro with gold serving spoon taking out some.
This Southwest Baked Quinoa is a true dump-and-bake dinner made with fluffy quinoa, tender sweet potatoes, earthy black beans, and Tex-Mex spices.

Ingredients 

  • 1 cup dried quinoa, rinsed well
  • 1 small sweet potato, peeled and diced into ½-inch cubes
  • 1 (15-ounce) can black beans, rinsed and drained
  • 1 (15-ounce) can diced tomatoes with green chiles, see notes if using Rotel tomatoes
  • 1 clove garlic, minced
  • 1 teaspoon smoked paprika, or regular paprika
  • 1 teaspoon chili powder
  • 1 teaspoon kosher salt
  • 1 teaspoon onion powder
  • 1¼ cup low-sodium vegetable broth, or chicken stock
  • 1 medium lime, zest and juice

Instructions 

  • Position an oven rack in the center of the oven and preheat to 400℉.
  • In a deep 8x8 or 2 quart baking dish, combine quinoa, sweet potatoes, black beans, diced tomatoes, minced garlic, 1 teaspoon smoked paprika, 1 teaspoon chili powder, 1 teaspoon kosher salt, 1 teaspoon onion powder, and 1¼ cup low-sodium vegetable broth.
    Quinoa with cubed sweet potatoes, canned black beans, diced tomatoes, vegetable broth, and taco seasoning in white dish before baking.
  • Once evenly mixed together, cover tightly with foil and bake, covered, for 45 minutes.
  • After 45 minutes, remove the foil, give everything a stir and return to the oven for 10 minutes. At this point, you could top with cheese if desired.
  • Remove from the oven, add the zest and juice of a lime and stir to combine. Let rest for 5-10 minutes for the liquid to absorb.
    Baked Quinoa with cubed sweet potatoes, canned black beans, diced tomatoes, vegetable broth, and taco seasoning
  • Top with cilantro, avocado, sour cream, etc. and enjoy.

Notes

Baking Dish: I find a deep, square baking dish best for this baked quinoa, as it keeps the quinoa from drying out as it bakes. If using a rectangular dish, reduce the bake time to 35 minutes covered, 10 minutes uncovered, adding additional time as needed. 
Diced Tomatoes: Keep in mind that this recipe calls for a 15-ounce can. Rotel tomatoes are typically only 10-ounce cans. If that is what you have on hand, you will either need to use 1½ cans. 
Bake Time: If after 55 minutes, your quinoa still has a bit of a crunch to it, add 2-3 tablespoons of broth or water, cover with foil again, and bake another 5-10 minutes. Sometimes ovens run a little cooler than others.
Storage: Store in an airtight container in the refrigerator for up to 4 days or in a freezer-safe container up to 2 months. Defrost in the fridge if needed, then reheat in the microwave on a heat-safe plate to warm through.

Nutrition

Calories: 198kcalCarbohydrates: 37gProtein: 7gFat: 3gSaturated Fat: 0.3gPolyunsaturated Fat: 2gMonounsaturated Fat: 1gSodium: 619mgPotassium: 400mgFiber: 5gSugar: 2gVitamin A: 5026IUVitamin C: 6mgCalcium: 42mgIron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Mention @amindfullmom or tag #amindfullmom!

About Kristen Chidsey

Kristen is a wife, busy mom of two, and creator of A Mind "Full" Mom. From breakfast to dinner to dessert, it is her passion to share tried-and-true recipes that are big on flavor, made with easy-to-find ingredients, and family-approved!

Read More About Me

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5 from 1 vote

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2 Comments

  1. 5 stars
    Easy and delicious! Needed a bit more water than called for to help the quinoa cook. I also added ground beef. Great recipe and will definitely make again!

    Reply