My former roommate was Korean, and he would often cook for himself. He was a single grad student, and he wasn't cooking "just like his mom," just something fast and easy. The cuisine was more the equivalent of mac and cheese with hot dogs, but at least healthier. This dish is what he cooked one night, and he often made a similar one-pot meal.
The basic components were frozen vegetables and fish cakes and a packet of flavoring. This particular packet had no English anywhere on it, so if you are feeling adventurous, you can go by the picture. He had different types of fish cake and fish rolls in the freezer (and I think "fish" can mean any seafood), and in this instance he used some breaded fish that looked kind of like chicken nuggets. The vegetables were a frozen mix of green beans, corn, and carrots, supplemented by fresh chopped onions and chilis and a spoonful of ginger garlic paste.
Once you have everything together, its just a matter of mix and boil. He would eat this with rice, which he prepared in advance in a rice cooker and froze in single-serving sized tupperware, a nice trick if you like to have food with rice!