Preheat your oven to 400°F and line a baking sheet with parchment paper.
Peel and dice the sweet potato into 1/2-inch cubes, then toss with avocado oil and sea salt on the prepared baking sheet.
Roast the sweet potatoes for 20-25 minutes, flipping halfway through, until they are tender and golden brown.
While the potatoes roast, heat a skillet over medium-high heat and brown the ground beef until no pink remains.
Drain any excess fat from the beef, then stir in the taco seasoning and black pepper until well combined.
Remove the beef from the skillet and add the frozen corn, cooking for 4-5 minutes without stirring frequently to allow for a dark, smoky char.
In a small mixing bowl, combine the cottage cheese, the juice from the lime, chopped cilantro, and finely diced red onion.
Assemble your bowl by placing the roasted sweet potatoes at the base, followed by the taco beef and charred corn.
Top the bowl with the cottage cheese mixture and garnish with extra cilantro if desired.