Preheat your oven to 425°F and line a baking sheet with parchment paper. Toss your diced sweet potatoes with olive oil, salt, and all three spices (cumin, paprika, and chili powder) until everything's evenly coated. Spread them out in a single layer on the baking sheet.

Roast the sweet potatoes for 12-15 minutes until the edges turn golden and crispy. Don't skip stirring halfway through—mine always stick a little to the pan and that's totally fine, but stirring helps them cook evenly. You'll know they're done when a fork goes through easily and the edges look caramelized.

While the sweet potatoes roast, warm your black beans in a small skillet over medium heat. Add the corn kernels and stir everything together gently for about 3 minutes until heated through. The beans should be warm but not boiling when you mix them with the sweet potatoes.

Warm your corn tortillas either wrapped in a damp paper towel in the microwave for 30 seconds or in a dry skillet over medium heat for about 10 seconds per side. Warm tortillas are SO much easier to work with and won't crack when you fill them.

Remove the sweet potatoes from the oven and let them cool for just 1-2 minutes so you don't burn yourself. Combine the roasted sweet potatoes with the warm bean and corn mixture in a large bowl. Toss everything together gently so you don't break apart the tender potatoes.

Build your sweet potato black bean tacos family meal by spooning the filling into each warm tortilla. Top with shredded cheddar, a small pinch of cilantro, and a squeeze of lime juice. Serve immediately while everything's still warm and the cheese starts to melt into the filling.