The Ultimate Black Bean and Sweet Potato Tacos

If Taco Tuesday had a plant-based best friend, these Black Bean and Sweet Potato Tacos would be it. They’re warm, smoky, and filling—without weighing you down or emptying your wallet. Basically, it’s taco night with main character energy (and no post-dinner food coma).
Ready in under 40 minutes with pantry staples and roasted veggie goodness, this recipe is a budget-friendly weeknight hero. Whether you’re vegan-curious, trying to eat less meat, or just love tacos (hi, same), this one’s for you.
Key Ingredients That Bring the Yum
What makes these tacos so craveable? It’s the magic mix of texture, spice, and sweet-meets-savory flavor. Here’s the rundown:
- Sweet Potatoes: Roasted until caramelized and crispy on the edges, these are the hearty base of your taco dream.
- Black Beans: Protein-packed, fiber-filled, and incredibly satisfying. Hello, plant-based power!
- Red Onion & Garlic: Aromatic and flavorful—these sautéed staples give the filling real depth.
- Spices (Cumin, Smoked Paprika, Chili Powder): Smoky and bold, these seasonings give the tacos their signature flair.
- Corn or Flour Tortillas: Soft, toasty taco vessels that hold all the goodness.
- Avocado & Cilantro (optional but strongly encouraged): Cool, creamy, and fresh—your toppings take this from good to glorious.
How to Make Black Bean and Sweet Potato Tacos
These Black Bean and Sweet Potato Tacos are not only tasty but also very affordable and nutritious.

Prep Time
10 minutes
Cook Time
25-30 minutes
Servings
4 (8 tacos)
- 1 large sweet potato, peeled and diced
- 1 can (15 oz) black beans, drained and rinsed (or 1.5 cups cooked black beans)
- 1 small red onion, finely chopped
- 2 cloves garlic, minced
- 1 tbsp olive oil
- 1 tsp ground cumin
- 1 tsp smoked paprika
- 1/2 tsp chili powder
- Salt and pepper to taste
- 8 small corn or flour tortillas
- 1 avocado, sliced (optional)
- Fresh cilantro, chopped (optional, for garnish)
- Lime wedges (optional, for serving)
Prepare Ingredients:
- Peel and dice the sweet potato.
- Drain and rinse the black beans.
- Finely chop the red onion and mince the garlic.
Roast Sweet Potatoes:
- Preheat your oven to 400°F (200°C).
- Place the diced sweet potatoes on a baking sheet, drizzle with olive oil, and season with salt, pepper, cumin, smoked paprika, and chili powder.
- Toss to coat evenly.
- Roast in the preheated oven for 20-25 minutes, or until tender and slightly crispy, stirring halfway through.
Cook Black Beans:
- While the sweet potatoes are roasting, heat a small amount of olive oil in a pan over medium heat.
- Add the chopped red onion and sauté for about 5 minutes until softened.
- Add the minced garlic and cook for another minute.
- Add the drained black beans to the pan and cook for about 5 minutes, stirring occasionally, until heated through.
- Season with salt and pepper to taste.
Warm Tortillas:
- Warm the tortillas in a dry skillet over medium heat for about 30 seconds on each side, or until pliable.
- Alternatively, you can wrap them in a damp paper towel and microwave for about 30 seconds.
Assemble Tacos:
- Place a portion of roasted sweet potatoes and black beans onto each tortilla.
- Top with sliced avocado and fresh cilantro if desired.
- Serve with lime wedges on the side for an extra burst of flavor.
Ways to Serve & Enjoy These Black Bean and Sweet Potato Tacos
Sure, you could eat them standing at the stove (no judgment), but here are some fun, grown-up ways to serve them:
- Taco Bar Night: Lay everything out and let everyone build their own masterpiece.
- Meal Prep Lunches: Pack components separately and reheat for quick weekday lunches.
- Taco Salad Twist: Skip the tortilla and serve over greens with salsa and lime vinaigrette.
- Loaded Nachos: Spread tortilla chips on a sheet pan, pile on the filling, and broil for 5 minutes.
Tips, Swaps & Budget Hacks
Storage Tips:
- Store leftover filling in the fridge for up to 4 days.
- Sweet potatoes can be roasted ahead of time and reheated.
- Don’t assemble tacos until you’re ready to eat (no one likes a soggy tortilla).
Ingredient Swaps:
- No sweet potato? Butternut squash or even roasted carrots work great.
- Make it spicy: Add a diced jalapeño or extra chili powder.
- No avocado? A dollop of hummus or cashew cream adds creaminess too.
Budget-Friendly Tip:
- Canned beans + seasonal produce = one of the cheapest healthy meals you’ll ever love. You can make 8 tacos for less than $10!
Optional Add-Ons for a Next-Level Taco Night
Want to level up your tacos or round out the meal? Here are some easy add-ons:
- Pickled Red Onions
- Vegan Chipotle Mayo
- Quick Slaw (cabbage + lime juice + salt)
- Salsa Verde or Pico de Gallo
- Mexican Rice or Cilantro Lime Quinoa
Final Bite
These Black Bean and Sweet Potato Tacos are smoky, hearty, and shockingly satisfying. Whether you’re feeding a crowd or just looking for a cozy solo dinner, this recipe checks all the boxes: easy, delicious, nutritious, and totally affordable.
Pro tip: Double the batch and freeze the extras. Future you will be grateful.
Affiliate Disclosure
This blog contains affiliate links, which means I may earn a commission if you click on a link and make a purchase or subscribe to a service. As an affiliate marketer, I partner with various companies and receive compensation for promoting their products or services. This in no way affects the opinions or recommendations I give.
Adulting Like A Grown-Up is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.