Inclination to have one regularly consuming salad vegetable (7)

I believe the answer is:

rampion

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'salad vegetable' is the definition.
The answer and definition can be both plants as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'inclination to have one regularly consuming' is the wordplay.
'inclination' becomes 'ramp' (an inclined surface).
'to have' is a charade indicator (letters next to each other).
'one regularly consuming' becomes 'ion' (I can't justify this - if you can you should give a lot more credence to this answer).
'ramp'+'ion'='RAMPION'

Can you help me to learn more?

(Other definitions for rampion that I've seen before include "Wild plant used in salads" , "bellflower" .)

I've seen this clue in The Independent.

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