Preheat your oven to 400°F (200°C).
Pierce the sweet potato several times with a fork and place it on a baking sheet.
Bake the sweet potato for 45 minutes or until tender and cooked through.
Once cooked, remove the sweet potato from the oven and let it cool slightly.
Cut the sweet potato in half lengthwise and gently scoop out some flesh to create a space for the filling.
In a bowl, mix together black beans, corn kernels, salsa, and chopped cilantro.
Spoon the mixture into the sweet potato halves.
Garnish with Greek yogurt and season with salt and pepper to taste.
Serve immediately and enjoy your stuffed sweet potatoes!