Sweet Potato and Black Bean Tacos

The easiest way to make nutrient-packed Sweet Potato and Black Bean Tacos with roasted sweet potatoes, hearty beans, and fresh toppings for a satisfying low-glycemic dinner ready in 35 minutes.

Updated

December 11, 2025

Sweet potato and black bean tacos topped with avocado cilantro and lime on white plate

These Sweet Potato and Black Bean Tacos are a game-changer for anyone looking to enjoy a satisfying, nutrient-packed meal that keeps blood sugar stable and energy levels steady. The combination of roasted sweet potatoes and hearty black beans delivers a perfect balance of complex carbs, fiber, and plant-based protein that will keep you full for hours.

I still remember the first time I made these tacos on a busy Tuesday evening. My kitchen filled with the aroma of cumin and roasted sweet potatoes, and I knew I had created something special. What makes this recipe truly shine is how the natural sweetness of the potatoes pairs beautifully with the earthy black beans, creating a flavor combination that feels indulgent while being incredibly good for you. These Sweet Potato and Black Bean Tacos have become a weekly staple in my home because they’re ready in just 35 minutes, require minimal prep work, and deliver maximum flavor. Whether you’re cooking for one or feeding a hungry family, this recipe adapts perfectly to your needs. Let’s get cooking!

Ingredients for Sweet Potato and Black Bean Tacos

I always keep these simple ingredients on hand because they’re pantry staples that come together beautifully. The key to making these tacos exceptional is using fresh sweet potatoes with firm, unblemished skin. I recommend selecting medium-sized ones (about 6-8 ounces each) for even cooking and easier dicing.

  • 2 medium sweet potatoes, peeled and diced into 1/2-inch cubes
  • 1 tablespoon olive oil (I usually use extra virgin for better flavor)
  • 1 teaspoon ground cumin
  • 1/2 teaspoon smoked paprika (my go-to brand is McCormick for consistent quality)
  • 1/2 teaspoon chili powder
  • Salt and pepper, to taste
  • 1 can (15 oz) black beans, rinsed and drained (I recommend low-sodium versions)
  • 8 small corn or whole wheat tortillas
  • 1/2 cup red onion, finely chopped
  • 1/2 cup fresh cilantro, chopped (in my experience, fresh makes all the difference)
  • 1 avocado, sliced
  • 1 lime, cut into wedges (I always use fresh, never bottled juice)
  • Optional: salsa or hot sauce for serving
Sweet Potato and Black Bean Tacos

Step-by-Step Instructions

I recommend preheating your oven first so it’s ready when you finish prepping. In my experience, this saves valuable time and ensures perfectly roasted sweet potatoes with caramelized edges.

Step 1: Preheat your oven to 425°F (220°C). While it heats, peel and dice the sweet potatoes into uniform 1/2-inch cubes for even cooking. Place them in a large bowl and toss with olive oil, cumin, smoked paprika, chili powder, salt, and pepper until every piece is well coated.

Step 2: Spread the seasoned sweet potatoes on a baking sheet in a single layer without overcrowding. This is crucial for getting those beautiful caramelized edges. Roast for 25-30 minutes, flipping them halfway through with a spatula. You’ll know they’re done when they’re fork-tender and have golden-brown, slightly crispy edges.

Step 3: While the sweet potatoes roast, warm your tortillas in a dry skillet over medium heat for about 30 seconds per side, or wrap them in foil and place in the oven for the last 5 minutes of roasting time. This prevents cracking and makes them more pliable.

Step 4: Heat the rinsed black beans in a small pot over medium heat for about 5 minutes, stirring occasionally, until heated through. You can add a pinch of cumin or garlic powder here for extra flavor.

Step 5: Assemble your tacos by layering the roasted sweet potatoes and black beans on each warm tortilla. Top with chopped red onion, fresh cilantro, and avocado slices. Squeeze fresh lime juice over the top and add your favorite salsa or hot sauce. Serve immediately while warm.

Perfect Pairings for Sweet Potato and Black Bean Tacos

These tacos shine brightest when paired with sides that complement their earthy sweetness and add contrasting textures.

Mexican-Style Rice: Fluffy cilantro-lime rice adds a light, refreshing element that balances the hearty tacos while keeping the meal low-glycemic when using brown rice.

Cabbage Slaw: A tangy slaw made with shredded cabbage, lime juice, and a touch of honey provides crunch and acidity that cuts through the richness of the avocado.

Street Corn: Sweet corn kernels tossed with red bell peppers, lime, and cotija cheese bring a summery freshness that enhances the southwestern flavors.

Cilantro Lime Rice: This bright, zesty side dish pairs beautifully with the roasted sweet potatoes and adds another layer of fresh citrus flavor to your meal.

Taco Rice Bowl Base: Transform these tacos into a bowl format with seasoned rice, creating a complete meal that’s perfect for meal prep throughout the week.

Tortilla Chips with Guacamole: Classic and beloved, this pairing adds crunch and healthy fats while keeping everything plant-based and nutritious.

Sweet Potato and Black Bean Tacos

Keeping Your Tacos Fresh

Store the roasted sweet potatoes and black beans separately in airtight containers in the refrigerator for up to 4 days. This makes meal prep incredibly easy throughout the week. I recommend keeping the tortillas and fresh toppings separate until you’re ready to assemble.

When reheating, warm the sweet potatoes in a 350°F oven for 10 minutes to restore their texture, or microwave for 1-2 minutes until heated through. The black beans can be reheated on the stovetop or in the microwave. Pro tip: add a splash of water when reheating to prevent drying out.

These tacos are incredibly versatile beyond their traditional presentation. I often use the sweet potato and black bean mixture over salad greens for a taco bowl, stuff them into bell peppers for a fun twist, or serve them as a breakfast taco with scrambled eggs on top.

FAQs

Can I make these tacos ahead of time?

Yes! Roast the sweet potatoes and prepare the black beans up to 4 days in advance. Store them separately and assemble the tacos just before serving for the best texture and freshness.

Are sweet potatoes really low-glycemic?

Absolutely. Despite their natural sweetness, sweet potatoes have a glycemic index of 44, which is considered low. The fiber content helps slow sugar absorption, making them an excellent choice for stable blood sugar levels.

What’s the best way to prevent my tortillas from breaking?

Always warm your tortillas before assembling. The heat makes them more flexible and less likely to crack. You can warm them in a dry skillet, directly over a gas flame for a few seconds per side, or wrapped in foil in the oven.

Conclusion

These Sweet Potato and Black Bean Tacos prove that eating healthy doesn’t mean sacrificing flavor or spending hours in the kitchen. With just 35 minutes and simple ingredients, you’ll have a nutritious, blood sugar-friendly meal that everyone will love. The natural sweetness of roasted sweet potatoes combined with protein-rich black beans creates a satisfying dinner that’s as good for your body as it is delicious. Give this recipe a try tonight and discover your new favorite weeknight dinner solution!

Sweet potato and black bean tacos topped with avocado cilantro and lime on white plate

Sweet Potato and Black Bean Tacos (Low-Glycemic)

Delicious, nutritious tacos featuring roasted sweet potatoes and black beans with fresh toppings. Perfect low-glycemic meal ready in 35 minutes.
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings: 4 portions
Course: Dinner, Main Course
Cuisine: American, Mexican
Calories: 320

Ingredients
  

  • 2 medium sweet potatoes peeled and diced into 1/2-inch cubes
  • 1 tablespoon olive oil
  • 1 teaspoon ground cumin
  • 1/2 teaspoon smoked paprika
  • 1/2 teaspoon chili powder
  • Salt and pepper to taste
  • 15 oz black beans 1 can, rinsed and drained
  • 8 small corn or whole wheat tortillas
  • 1/2 cup red onion finely chopped
  • 1/2 cup fresh cilantro chopped
  • 1 avocado sliced
  • 1 lime cut into wedges
  • salsa or hot sauce optional, for serving

Equipment

  • Baking sheet
  • Large bowl
  • Small pot
  • Skillet

Method
 

  1. Preheat your oven to 425°F (220°C). Peel and dice the sweet potatoes into uniform 1/2-inch cubes for even cooking. Place them in a large bowl and toss with olive oil, cumin, smoked paprika, chili powder, salt, and pepper until well coated.
  2. Spread the seasoned sweet potatoes on a baking sheet in a single layer without overcrowding. Roast for 25-30 minutes, flipping them halfway through with a spatula, until fork-tender with golden-brown, slightly crispy edges.
  3. While the sweet potatoes roast, warm your tortillas in a dry skillet over medium heat for about 30 seconds per side, or wrap them in foil and place in the oven for the last 5 minutes of roasting time.
  4. Heat the rinsed black beans in a small pot over medium heat for about 5 minutes, stirring occasionally, until heated through. Add a pinch of cumin or garlic powder for extra flavor if desired.
  5. Assemble your tacos by layering the roasted sweet potatoes and black beans on each warm tortilla. Top with chopped red onion, fresh cilantro, and avocado slices. Squeeze fresh lime juice over the top and add salsa or hot sauce if desired. Serve immediately.

Notes

Store roasted sweet potatoes and black beans separately in airtight containers for up to 4 days. Reheat in oven at 350°F for 10 minutes or microwave until warm. Use corn tortillas for gluten-free option or whole wheat for added fiber.

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