Fenneru no shiomomi ponzu
(quick Japanese fennel salad)

For ➋ 
1 large fennel bulb
½ ts salt
ponzu or lemon juice
pepper (optional)

Cut the green parts off the fennel bulb.  Cut the bulb in half, then slice very thinly. Sprinkle with salt. Massage the slices firmly with your hand until they are softened.
You can store this in the refrigerator, well covered, for 3-4 days like this if you like. 
When using, drain off any excess moisture, and sprinkle with a little bit of lemon juice or ponzu and optionally, black pepper.
Serve as a salad or a side-dish.
*Serve with salmon sashimi.

Shiomomi, massaging vegetables with salt, can be used with 
shredded cabbage
thinly sliced daikon radish (mouli)
thinly sliced Japanese turnip (the small white kind), or larger Chinese turnip (Western turnip is a bit too woody)
thinly sliced celeriac
thinly sliced onion
cucumber, thinly slices or cut into chunks
cut up Chinese (napa) cabbage
cough outer leaves of cos or romaine lettuce
Just sprinkle a little salt on the vegetables, and scrunch them up well with your impeccably clean hands. Optionally add some dried chili pepper flakes for spiciness. You can eat the massaged vegetables immediately, or store it in the refrigerator for a few days. Shiomomi is closely related to instant pickles, but even easier since you are just relying on the inherent flavors of the vegetables you are using.