Preheat oven to 400ºF.
Prick sweet potatoes a couple of times with a fork and place on baking sheet. Place in oven for 40 minutes.
In meantime, heat frozen corn in the microwave for about 2 minutes in a microwave-safe bowl. After removing from the microwave, add in black beans, 3 tablespoons of salsa, and 1 tablespoon of taco seasoning. Mix well.
In a small bowl, scoop in the sour cream. Add in hot sauce to desired taste. Add 1 tsp of water in at a time while stirring until the mixture can easily be drizzled.
Once the sweet potato is ready, cut down the center and then mash with a fork. Scoop bean mixture on top. Top with desired toppings. Drizzle with sour cream.
