Preheat oven to 425 degrees

Line a baking sheet with foil then place sweet potatoes on foil

Drizzle with 3 tablespoons olive oil and toss to evenly coat

Sprinkle evenly with cumin, paprika, coriander, cayenne pepper, and season lightly with salt and pepper to taste, then toss to evenly coat

Bake in preheated oven 15 to 20 minutes until tender, removing from oven and tossing once halfway through baking

Meanwhile, in a large Skillet, heat remaining 1 tablespoon olive oil over medium - high heat

Once hot add onion and sauté until carmelized (golden brown on edges and tender), about 5 - 6 minutes, adding in garlic during last 30 seconds of sautéing.

Reduce heat to medium - low, add in drained black beans, corn, honey, and lime juice

Heat until warmed through. Toss in roasted sweet potatoes and cilantro. Serve over warm tortillas with desired toppings