Place all ingredients except potatoes and carrots into a large pot, cover, and bring to a gentle boil for about two minutes over medium high heat. When the stew comes to a boil, give everything a good stir to evenly distribute and incorporate all the ingredients..
Turn the heat down to medium low, cover again, and simmer for 20 minutes..
Add the potatoes and carrots, cover again, and simmer for another 20 minutes..
Give the stew another stir or two, put the lid back on askew, and continue to simmer for another 10 to 15 minutes over medium low heat. Give it a taste and adjust the salt level with salt if necessary, and that's it!.
Serve in individual bowls or family style (as is typical for most casual Korean family meals), sprinkle with perilla and/or green onion, and enjoy with a bowl of steamed rice. If you want to save yourself some dishes, you can combine the stew and rice in one bowl, which is a totally Korean thing to do..