Slice cucumber and pickled radish into thin, long strips.
Slice carrot thinly and lightly sauté in a pan with some oil.
Mix rice well with salt, sesame oil, and crushed sesame seeds.
Evenly spread rice over the seaweed sheet.
Add spicy tuna, cucumber, pickled radish, and carrots on top of the rice.
Roll up tightly into kimbap shape.
Cut into bite-sized pieces.