Heat a large pot over medium heat and add coconut oil. Once melted, add chopped onions and cook until translucent.
Add garlic, black pepper, and cayenne powder and let cook for another couple of minutes.
Next, add potatoes and water and let simmer for 10 minutes.
Broccoli florets and peeled and cut stem go next into the soup. Make sure water almost entirely covers the veggies. Let simmer for 5 minutes.
Add frozen green peas, soy milk, and salt and let cook for another 5-10 minutes until everything softens.
Remove the soup from heat, add the basil (keeping some of the leaves for decoration) and blend the soup with a blender.
On a separate pan, heat a tbsp of olive oil. Cut the king oyster mushroom stems to rounds (leave the heads for another occasion), cut some cross lines on both sides.
Place onto the pan, sprinkle some salt and pepper on top. Fry around 3-4 minutes on each side until lightly golden.
Place the "scallops" on top of the soup and decorate the soup bowl with some basil leaves.