Kamaboko
Slices of steamed fish cake. One type of kamaboko that is commonly served on ramen is naruto (or narutomaki), a sawtooth edged, white fish cake with a red or pink spiral design on it.
Corn
Canned corn is often paired with butter and served on miso or shio ramen.
Butter
A thick pat of butter adds creaminess and depth. Typically added to miso or shio ramen.