Heat a larger skillet over medium heat. Once hot, add oil, sweet potatoes, salt, and pepper and stir to coat. Arrange in a single layer to ensure even cooking and place a lid on top to steam.
Cook for 3-4 minutes. Then uncover and flip the potatoes to ensure even cooking. If browning too quickly, turn heat down to medium-low. Continue cooking until golden brown on both sides and tender - about 10-15 minutes total. During last 5 minutes of cooking add kale to skillet to wilt slightly.
Combine Tahini, garlic and cumin and stir until smooth. Add a teaspoon of water at a time to thin dressing if needed.
To serve, divide kale and potato mixture between serving plates and top radishes, avocado, hemp seeds and cilantro. Serve with dressing on the side.
Enjoy immediately. Leftovers will keep (stored separate from dressing) for 2-3 days, though best when fresh.