Yes, 김 (kim) is a very popular Korean last name, but what else is it?!
김 - Seaweed
김밥 - Rice and veggies wrapped in seaweed!
Literally 'seaweed rice'
A fun Korean food with 김:
주먹밥 - Rice ball!
Literally "fist rice"
Just take fresh rice and roll it together with seaweed. You can also add kimchi, tuna, or meat to the middle for a tasty surprise!