Steps
1. Preheat the oven to 200°C (400°F). Toss camote cubes with half the olive oil, salt, and pepper. Spread on a baking sheet and roast for 20-25 minutes until tender and slightly caramelized.
2. Cook spaghetti according to package instructions until al dente. Drain and set aside.
3. In a skillet, heat the remaining olive oil over medium heat. Add chopped onions and cook until caramelized, about 8-10 minutes.
4. Add minced garlic and diced tomatoes to the skillet, cooking until tomatoes soften, about 5 minutes.
5. Pour in the heavy cream, stir well, and let the sauce simmer for 3-4 minutes. Season with salt and pepper.
6. Toss the cooked spaghetti and roasted camote cubes into the sauce, mixing gently to coat well.
7. Serve warm, garnished with fresh basil leaves.