Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
Place the sweet potato cubes on the baking sheet. Add the olive oil, chili powder, garlic powder, cumin, and salt. Toss to coat evenly.
Roast for 25 to 30 minutes, turning halfway through, until the sweet potatoes are tender with lightly browned edges.
Meanwhile, add the ground beef and yellow onion to a large skillet over medium heat. Cook for 6 to 8 minutes, breaking the beef into small pieces, until browned and the onion is tender.
Drain any excess grease from the skillet if needed.
Add the garlic, chili powder, cumin, smoked paprika, oregano, salt, and black pepper. Cook for 30 seconds, stirring frequently.
Stir in the water and black beans.
Reduce the heat to low and simmer for 3 to 4 minutes, until the beans are heated through and most of the liquid has evaporated.
Divide the roasted sweet potatoes evenly among 4 serving bowls.
Top each bowl with the taco beef mixture, diced tomatoes, corn, shredded cheese, Greek yogurt, red onion, and cilantro.
Notes
Estimated WW Points: 9 (Check official WW app for exact points)
Tips and Tricks
Cut Evenly - Keep the sweet potato cubes close to ½ inch so they roast at about the same rate.Don't Crowd the Pan - Spread the sweet potatoes in a single layer with a little space between them. Use two baking sheets if necessary.Use Lean Beef - The recipe calls for 93% lean ground beef. Beef with a higher fat content may need more draining.Adjust the Heat - Add diced jalapeños, crushed red pepper, or hot sauce if you prefer a spicier taco bowl.Keep the Toppings Fresh - Add the tomatoes, yogurt, and cilantro just before serving, especially if preparing the bowls ahead of time.
Storing and Reheating
Refrigerator - Store the cooked beef and sweet potatoes in airtight containers in the refrigerator for up to 4 days. Keep the fresh toppings separate.Freezer - Freeze the cooked taco beef and roasted sweet potatoes in separate freezer-safe containers for up to 3 months. Freeze without the fresh toppings.Microwave - Place the beef and sweet potatoes in a microwave-safe bowl. Cover loosely and heat in 30 to 60-second intervals, stirring between intervals, until heated through to 165°F. Add fresh toppings afterward.Oven - Place the sweet potatoes in a baking dish and cover with foil. Reheat at 350°F until hot. Warm the beef separately in a skillet over medium-low heat, adding a splash of water if needed.Thawing - Thaw frozen beef and sweet potatoes overnight in the refrigerator before reheating.