Crave Corner · Dinner

Black Bean and Sweet Potato Tacos With Roasted Edges and Avocado Spread

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Three black bean and sweet potato tacos in corn tortillas with avocado, crema, pickled onion and cilantro beside salsas
Prep
5 min
Cook
25 min
Total
30 min
Serves
4

It is 5:50 on a Monday, the oven is beeping at 425F, and you have a sweet potato that has been giving you a look since Thursday. Black bean and sweet potato tacos turn it into dinner in about 30 minutes, and the pickled onions make it look like you planned the whole week around this.

Sweet meets earthy, and they get along better than you would think.

A sweet potato and a can of black beans are not an obvious couple, but a hot oven and a little cumin introduce them properly. The cubes roast until the edges catch, the beans warm in a saucepan with garlic and lime, and a quick avocado mash holds everything to the tortilla. Pickled red onions on top give you the bright bite the whole thing needs.

What you need

  • 2 sweet potatoes, cubed
  • 15 oz black beans
  • 8 corn tortillas
  • 2 avocados
  • 8 oz guacamole
  • 2 limes
  • 1 tsp cumin
  • 2 tbsp olive oil
  • 1 tsp chili powder
  • 3 cloves garlic
  • 4 fl oz pickled red onions
  • ½ tsp salt
  • ½ tsp black pepper

How to make it

  1. Peel and cube the 2 large sweet potatoes into 1 inch pieces.
  2. Toss the cubes with the 2 tbsp olive oil, 1 tsp cumin, 1 tsp chili powder, salt, and black pepper.
  3. Spread on a baking sheet and roast at 425F for 20-25 minutes until tender.
  4. Mince the 3 garlic cloves and warm the 15 oz can black beans in a saucepan with the garlic, 1 tsp cumin, and juice from 1 lime for 5 minutes.
  5. Mash the 2 avocados with juice from the remaining lime and a pinch of salt to make a simple spread.
  6. Warm the 8 corn tortillas, then fill each with roasted sweet potato, black beans, avocado spread, and some of the 1/2 cup pickled red onions.
If you only remember one thing Cut the sweet potato into one inch cubes, so every piece roasts tender with a few browned edges in the same 20 to 25 minutes.

Notes

Cooked leftovers keep three to four days in the fridge, per USDA FSIS. Store the roasted sweet potato, the beans and the avocado spread in separate containers, because the spread browns quickly and the tortillas should be warmed fresh.

The roasted sweet potato and the seasoned beans freeze well in separate containers. Thaw them in the fridge overnight and reheat in a skillet. Skip freezing the avocado.

Day two makes a good burrito bowl: rewarm the sweet potato and beans, and spoon them over rice with a squeeze of lime. The flavors settle in overnight.

If the tacos come out bland, a squeeze of lime and a pinch of salt on the beans and the avocado spread fixes most of it. Swipe this one into a week when you are cooking for someone who says they do not like vegetarian dinners, and the agent can put the sweet potatoes and corn tortillas in the cart before you have decided how to break the news.

Timing note: the sweet potatoes are the slow part, so get them in the oven first and do everything else while they roast. The beans take five minutes and the avocado takes two, which means the oven is the only thing you are waiting on in black bean and sweet potato tacos.

Swaps that actually work

The sweet potato and the black beans are the point of black bean and sweet potato tacos. The roasting spices and toppings can move around them.

For the sweet potatoes, butternut squash cubes roast in about the same time and taste similar. Regular potatoes work but lose the sweetness, which is the whole contrast.

For the beans, pinto beans are a gentler, creamier option, and any other canned bean you like will stand in. Drain and rinse them if you prefer less saltiness, though the can liquid helps the beans stay saucy when they warm.

For the tortillas, corn is the plan and gives the tacos their earthy flavor. Flour tortillas work and are softer, and some people find them easier to fold. Warm either in a dry skillet or directly over a gas flame for a few seconds a side.

For the avocado spread, use a ripe avocado and mash it with the lime juice and a pinch of salt. If your avocados are rock hard, store-bought guacamole is a perfectly fair shortcut, and it keeps the evening moving.

For the pickled red onion, a quick homemade version with sliced red onion, vinegar, a pinch of sugar and salt takes 10 minutes and sits while you roast. Sliced raw red onion with a squeeze of lime is a lazy backup.

The swap that costs you the dish is cutting the sweet potato too big or too small. Large chunks stay hard in the middle, and thin ones dry out and burn before the oven has finished.

If it goes wrong

The sweet potatoes are hard in the middle. The cubes were too large or the pan was crowded. Put them back in the oven for another 5 minutes, or cover with foil to steam them through, and cut smaller next time.

The sweet potatoes are soggy, not roasted. The baking sheet was too crowded, so they steamed. Spread them in a single layer with room between pieces, and use two pans if you need to.

The avocado spread turned brown. Avocado oxidizes quickly. Squeeze extra lime on it and press plastic wrap right on the surface, or make it just before you fill the tortillas.

It tastes flat. Almost always salt, and then acid. Add a pinch of salt to the beans, squeeze another lime over the filled taco, and add more pickled onion.

What to serve with it

The default is a plate of three tacos with a lime wedge, and a little extra pickled onion on the side. The better version of the default is a pot of rice or a simple cabbage slaw next to the tacos, which gives you something crisp against the soft filling.

The thing in the fridge that lifts it: a spoon of sour cream or yogurt, some crumbled cheese, or a handful of cilantro. Radish slices work too if you have them.

It works as lunch the next day, rolled into a warm tortilla or piled over greens. The sweet potato holds its flavor cold.

This is a good taco for a table with mixed tastes. Set out the tortillas, the roasted sweet potato, the beans, the avocado spread and the pickled onions, and let everyone build their own.

Why this one earns its place

This is the dinner you cook when you want to feel good about the evening without making a speech about it. Black bean and sweet potato tacos are filling, colorful, and quietly confident, the vegetarian option that does not apologize for itself.

It is also a dish that works for a mixed table. Meat eaters get something that tastes substantial, and the person who cooked it gets to say they did nothing special.

If you want more in the same lane, these are good company: Jackfruit Tacos for another meatless taco night, Black Bean Nachos for a lazier version of the same flavors, and meal planning and food waste for putting that leftover sweet potato to good use.

More like this: all Mexican recipes in Crave Corner.

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