The best replacement for wasabi is horseradish.

The best alternatives to wasabi are rated as following:
★★★★★  horseradish
★★  habanero
★★  xk3y
★  mustard
★  xkey
★  wiikey
★  senator skull
★  drivekey
★  sterlingtek
★  pogo
★  ghost pepper
★  d2pro
★  smatree
★  gopro battery
★  itsy bitsy
★  d2pro9
★  corbata
  big time
  fake wasabi
  chili pepper
  itsu
  wiikey 2
  benihana

Your alternative for wasabi is not listed? Suggest!
Speaking about wasabi, one probably shouldn't forget about sushi.

Other search terms related to wasabi and their ratings are:
★★★★★ sushi
★★★ tuna
★★ mayonnaise
★★ sashimi
★ peas
★ soy sauce
wasabi
You have in mind a companion for wasabi and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of wasabi in all years. Click on graph for more.
wasabi
horseradish
habanero