In a heavy pot or dutch oven, heat A thin layer of coconut oil over medium high heat. Add in the onion and ginger. Stir occasionally. Allow the onions to slightly caramelize.
Add in the Sweet Potatoes. Allow them to brown a little. Stir as needed. Cook for about 5 minutes.
Add the Chilis and cumin. Stir. Cook for about 1 minute. Then add the corn. Stir and cook about 5 minutes.
Add in the Coconut milk. Bring to a boil. Then add the peppers and tomatoes. Continue cooking about 2 minutes. Add salt, pepper, scallions, and cilantro. Stir well. Then remove from the heat. Serve hot.