Add the edamame beans to a bowl and cover them with plenty of boiling water. Let it sit to thaw while you prepare the oats.
To a saucepan, add the oats, coconut milk, water, bouillon cube, sesame oil, and garlic powder. Bring to a gentle boil, then reduce to a simmer for 7 - 8 minutes, stirring occasionally.
Stir in the green onion, miso paste, sriracha, and pepper. Cook for 1 - 2 minutes.
Divide the oatmeal between bowls. Top with the drained edamame, radish, pickled onion, sesame seeds, and chili flakes. Enjoy!
