Oh lordy I have a few....especially ones that Westerns once they try end up loving a lot and I can see exploding.
First called JJimdak 찜닭. its a family style dish meant to be shared. Its typically braised chicken in a soy based sauce withboiled egg. glass noodles, potatoes, green peppers, dumplings, rice cake, onions, and carrots. It ranges from sweet to extremely spicy and can be covered with cheese to make a sort of fondue. On the side its served with rice and cabbage kimchi with drinks being Somaek and Soju of some sort. (Somaek is essentially a mixed alcoholic drink that fuses Beer and Soju and it gets you drunk super fast). Some places add seafood to it and others add different meats. This is quite popular dish for meeting friends and a kids enjoy this dish as well as adults.
Second thing I think will be loved is Korean Seobinggo….its a Korean dessert of ice cream, fruit, shaved ice, syrup, in a huge bowl and meant to be shared as well.
Galbi Tacos and kimchi fries and makolitas: Galbi is a special kind of marinated meat usually chicken, pork, or beef and with a larger interest in Mexican food has lead to a fusion dish that is growing here and so delicious. Kimchi fries used kimchi which is a spicy pickled veggie usually cabbage with bulgogi (Korean thin sliced meat) and so much other stuff. Served with makolitas (margaritas made with traditional Korean rice wine)
Jajangmyeon and Naengmyeon (black bean noodle and cold noodle): Black bean noodle was a dish brought from China and adapted to Korea. With a thick black bean soy paste, this dish is popular with the vegetarian/vegan crowds, Its very tasty and light at the same time extremely filling. Now cold noodles is a kinda a soup served ice cold usually and is filling and refreshing for the summer. Its quite popular with foreigners once they get past seeing ice cubes in their soup. Its a very tasty treat.
Lastly, Korean BBQ and Dakgalbi. I know its in most major cities now...but still for those who never had they leave happy.