Well, Korean food - generally speaking - you'll pretty much always have a variety of side dishes - which include picked spicy cabbage (kimchi), salted small fishes, other salted or picked vegetables, and of course, rice. You'll find a lot of soups and stews in Korean cuisine, which is not surprising given its cold climate - very enjoyable.
-Some of the major dishes include:
-grilled meats such as sliced, marinated beef (bulgogi), beef short ribs (kalbi)
-Ginseng chicken soup stew (samgyetang)
-Kalbi tang (beef short ribs soup - usually not spicy)
-fried egg/leek pancake
-tofu stew (soontofu) - can have some minced or ground pork, mushrooms, or seafood in it - very filling, nutritious
-Bibimbap -rice bowl with vegetables, some beef strips, fried egg, and red pepper paste on top
-Mandokuk-pork/leek dumplings in soup, similar to Chinese shuijiao, but flavoring is different.
Generally, the food is pretty spicy - major key flavorings and ingridients include garlic, green onion, chili paste, sesame oil, capsicum, etc. Contrast this with most Japanese food, which tends to be milder in flavor. Korean food seems to have less seafood offerings than Japanese. Chinese cuisine has many regional variations so it's harder to generalize.