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.
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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

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.

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.

Sweet Potato and Black Bean Tacos (Low-Glycemic)
Ingredients
Equipment
Method
- 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.
- 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.
- 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.
- 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.
- 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.








