It's not sweet potato, is yam...
This .. 👇
https://blossom.primal.net/0fb01165c0f7d778f69c7c7a8eb1b83773b675a19fe68b472a662d52e584d804.jpg
I made a sauté with olive oil, 1 red onion, 2 cloves of garlic, and chives, before adding the vegetables and water. Pepper and salt to taste.