Prick sweet potatoes several times with fork on each side. Lay on foil-lined or parchment paper-lined baking sheet with rim. Drizzle with olive oil and sprinkle with kosher salt and pepper, rubbing the oil and seasonings over the entire potato.
Bake potatoes for 1 hour. Remove and set aside.
Meanwhile, in a pan over medium-high heat, brown ground beef. Season with taco mix, prepared as directed. Let simmer 5 minute until sauce slightly thickens.
Add rice and diced tomatoes. Thoroughly combine.
Turn the heat off and stir in cheese.
Plate your sweet potatoes and cut them open lengthwise. Spoon the beef mixture into the sweet potatoes and top with another sprinkle of shredded cheese.