Cheap Black Bean and Sweet Potato Tacos — Ready in 40 Minutes
Two cheap pantry staples, one skillet, dinner on the table in 40 minutes.
When you're tired and the fridge looks sparse, these tacos have your back. Sweet potato and black beans are genuinely filling, deeply flavorful with a little cumin and chili powder, and cost almost nothing per serving. You'll roast the sweet potato in a skillet while you warm the beans — no oven required, no fancy technique. Expect a little caramelization on the edges, a smoky-sweet filling, and a dinner that feels more satisfying than the effort it took. Leftovers pack well for lunch tomorrow, which is a bonus when you're already this tired.
Ingredients
- 1 lb sweet potatoes — about 2 medium, peeled and cut into 1/2-inch cubes
- 2 tbsp olive oil — divided
- 1 tsp chili powder
- 1 tsp ground cumin
- 0.5 tsp smoked paprika
- 0.5 tsp garlic powder
- 0.5 tsp salt — plus more to taste
- 1 unit can black beans — 15 oz, drained and rinsed
- 2 tbsp water
- 8 unit small corn tortillas — 6-inch; use flour tortillas if preferred
- 0.5 unit red onion — thinly sliced
- 1 unit lime — cut into wedges for serving
- 0.25 cup fresh cilantro — roughly chopped; optional
- 0.5 cup salsa or hot sauce — jarred is fine
Method
- 1 Peel and cube the sweet potatoes into roughly 1/2-inch pieces — uniform size helps them cook evenly. Slice the red onion and set aside.
- 2 In a large skillet, heat 1 1/2 tablespoons of olive oil over medium-high heat. Add the sweet potato cubes in a single layer. Cook undisturbed for 5 minutes until the bottoms start to brown.
- 3 Stir the sweet potatoes, then sprinkle over the chili powder, cumin, smoked paprika, garlic powder, and salt. Toss to coat evenly.
- 4 Reduce heat to medium, cover the skillet loosely with a lid or foil, and cook for another 12–15 minutes, stirring every 5 minutes, until the sweet potatoes are tender and caramelized at the edges.
- 5 Push the sweet potatoes to one side of the skillet. Add the remaining 1/2 tablespoon of olive oil to the empty side, then add the drained black beans. Pour in 2 tablespoons of water and stir the beans gently, letting them warm through for 3–4 minutes. Season with a pinch of salt.
- 6 Warm the tortillas directly over a gas burner for 30 seconds per side, or wrap them in a damp paper towel and microwave for 45 seconds.
- 7 Build your tacos: spoon sweet potato and black beans onto each tortilla, top with sliced red onion, cilantro, and a squeeze of lime. Add salsa or hot sauce to taste.
- 8 Serve immediately. Any leftover filling stores well in the fridge for up to 3 days — just re-warm in a skillet or microwave.
Variations
- Vegan queso drizzle — Blend one drained can of white beans with 2 tablespoons of nutritional yeast, a splash of water, and a pinch of salt for a creamy, dairy-free drizzle that costs almost nothing.
- Faster swap — microwave sweet potato — Pierce a whole sweet potato with a fork and microwave on high for 6–8 minutes until soft, then scoop and roughly mash it. Skip the skillet browning step and just warm the beans on their own — dinner in about 15 minutes total.
- Add heat — Stir a finely diced jalapeño into the sweet potatoes in step 3, or add a teaspoon of chipotle powder instead of regular chili powder for a smokier, spicier kick.
- Make it a bowl — Skip the tortillas and serve the filling over cooked rice or shredded cabbage — a good move if you want to stretch servings to 5–6 or skip the tortilla cost entirely.
Notes
The key to good caramelization is patience — don't stir the sweet potatoes too early in step 2 or they'll steam instead of brown. If your skillet runs hot, lower the heat slightly after adding the spices so they don't burn. Corn tortillas are cheaper and naturally gluten-free; double them up if they crack. For extra richness without much cost, mash a few of the black beans against the skillet before assembling.
Equipment that helps
- large skillet (12-inch) — A wide surface lets the sweet potato cubes spread out in a single layer so they brown instead of steam.
- lid or sheet of foil — Covering the skillet in step 4 traps steam and helps the sweet potatoes cook through without burning the outside.
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