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Leftover Sweet Potato Black Bean Tacos
American

Leftover Sweet Potato Black Bean Tacos

Crisp-edged tacos built on leftover roasted sweet potatoes and canned black beans, seasoned with cumin and chili powder. Ready in 25 minutes, they turn last night's side dish into a filling meat-free dinner.

25 minsEasy4 servings400 kcal

Leftover roasted sweet potatoes are easy to ignore in the fridge: they go soft when reheated on their own, and nobody is excited about the same side dish twice. Folded into tacos with black beans, they get a second life — the hot skillet crisps their edges again, and the beans make the filling hearty enough for dinner.

The trick is treating the sweet potatoes like the star, not a filler. Cooking them undisturbed in a hot, oiled skillet brings back the browned edges, and mashing some of the beans binds the filling so it stays in the tortilla instead of falling out. Cumin and chili powder do the seasoning work, so the whole thing tastes deliberate rather than thrown together.

Expect warm, crisp-edged tacos with a soft, sweet-savory filling, brightened by lime and crunchy cabbage on top. Eight tacos feed four as a main dish, and the filling also works over rice the next day if you have any left.

shopping_basketIngredients

  • 1 tbsp olive oil
  • 2 cups leftover roasted sweet potatoescubed, cold or at room temperature
  • 1 can (15 oz) black beansdrained and rinsed
  • 1 tsp ground cumin
  • 1/2 tsp chili powder
  • 1/2 tsp garlic powder
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 1 limehalf juiced, half cut into wedges
  • 8 small corn or flour tortillas
  • 1 cup shredded cheddar or Monterey Jack
  • 1 cup shredded cabbagefor topping, plus salsa if you have it

Nutrition Per Serving

Calories

400

Protein

14g

Fat

16g

Carbs

52g

restaurantInstructions

1

Crisp the sweet potatoes

Heat the olive oil in a large skillet over medium-high heat until it shimmers. Add the sweet potatoes in a single layer and cook without moving them for 4 to 5 minutes, until the undersides are browned and crisp at the edges. Stir once and cook 2 minutes more so a second side picks up color.

2

Add the beans and spices

Lower the heat to medium and add the black beans, cumin, chili powder, garlic powder, salt, and pepper. Cook 3 to 4 minutes, stirring, until the beans are heated through and smell fragrant. Press about a third of the beans with the back of a spoon so the filling holds together in the tortillas, then squeeze over the lime juice.

3

Warm the tortillas

Move the filling to a bowl and wipe the skillet. Warm the tortillas in the dry skillet over medium heat for about 30 seconds per side, until they are pliable with a few light brown spots. Stack them under a clean towel so they stay soft while you fill them.

4

Fill and melt the cheese

Spoon filling down the center of each tortilla and top with cheese. Return the filled tacos to the skillet over low heat, folded or open-faced, for 1 to 2 minutes, until the cheese is just melted and the tortilla edges start to crisp. Work in batches so the pan is not crowded.

5

Top and serve

Top with shredded cabbage and salsa, and serve at once with the lime wedges, while the filling is still hot and the cheese is melted. Two tacos make a serving for most people; add a third for a hungrier eater.

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Cooking Mode

Keep your screen awake with step-by-step guidance.

lightbulbTips for success

  • Start with sweet potatoes in a single layer and leave them alone for the first 4 minutes. Moving them too soon breaks them up before a crust forms, and a crust is what makes leftover sweet potatoes taste freshly cooked.
  • Mash about a third of the beans into the pan. Whole beans roll out of a taco; a partly mashed filling clings to the sweet potatoes and stays put when you take a bite.
  • Keep the tortillas under a towel as you work. Corn tortillas in particular stiffen and crack within a minute in open air, and a warm, covered stack stays pliable until the last taco is filled.

swap_horizSubstitutions

  • No leftover roasted sweet potatoes? Roast 2 large sweet potatoes, peeled and cubed, at 425°F (220°C) for 25 to 30 minutes until tender and browned at the edges, then cool slightly and use as written.
  • No black beans? Use the same amount of pinto beans or kidney beans, drained and rinsed.
  • No cheddar? Any melting cheese works; use the same amount of Monterey Jack, pepper jack, or crumbled feta, added off the heat so it softens rather than fully melts.
  • No cabbage? Use shredded lettuce, diced tomato, or a handful of baby spinach for the fresh crunch on top.

restaurantWhat to serve with it

Serve with salsa, lime wedges, and a simple side of rice or a green salad. A spoonful of sour cream or plain yogurt on top cools the chili powder heat for kids.

kitchenStorage & reheating

Store the filling on its own in an airtight container in the fridge for 3 to 4 days; refrigerate within 2 hours of cooking. Keep tortillas and toppings separate so nothing goes soggy. The filling freezes well for up to 2 months; thaw overnight in the fridge.

To reheat: Reheat the filling in a skillet over medium heat for 4 to 5 minutes, stirring, until steaming and the center reaches 165°F (74°C). Assemble fresh tacos rather than reheating assembled ones, which go soft. The microwave works for the filling alone: cover and heat in 1-minute bursts, stirring between, until steaming.

Recipe FAQ

Can I make the filling ahead of time?expand_more

Yes. Cook the sweet potato and bean filling up to 3 days ahead and refrigerate it in an airtight container. Reheat it in a skillet until steaming, then fill and warm fresh tortillas just before serving.

Why is my taco filling falling out?expand_more

Usually the beans were left whole and the sweet potatoes were too soft. Mash about a third of the beans in the pan so the filling binds, and crisp the sweet potatoes in a single layer first so they hold their shape instead of turning to mush.

Can I use flour tortillas instead of corn?expand_more

Yes. Flour tortillas warm the same way, about 30 seconds per side in a dry skillet, and they are less likely to crack when folded. They make a softer taco; corn tortillas give a better crisp edge.

Can I freeze these tacos?expand_more

Freeze the filling, not assembled tacos. Cool the filling completely, pack it in an airtight container, and freeze for up to 2 months. Thaw overnight in the fridge, reheat in a skillet until steaming, and build fresh tacos.

menu_bookHelpful guides

What can I make?

What to Make With Tortillas

Turn corn or flour tortillas into quesadillas, tacos, enchiladas, chilaquiles, and crispy snacks — plus how to use up stale ones.

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What can I make?

What to Make With Sweet Potatoes

Roast them, mash them, or turn them into tacos, soup, hash, or fries. Sweet potatoes keep well and cook fast — here are the best ways to use a whole bag.

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What can I make?

What to Make With Ground Beef

A pack of ground beef and no plan? Here are fast, reliable dinners — tacos, chili, meatballs and more — from what's in your fridge.

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