Said to catch up with Stuart briefly for casserole (4,4)

'said to catch up' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'with stuart briefly for casserole' is the wordplay.
'with' says to put letters next to each other.
'stuart' becomes 'mea' (I am not sure about this - if you are sure you should believe this answer much more).
'briefly' means to remove the last letter.
'for' becomes 'to' (eg both can mean 'in the opinion of').
'casserole' becomes 'stew' (casserole is a type of stew).
'to' with its final letter taken away is 't'.
'mea' put next to 't' is 'meat'.
'meat'+'stew'='MEAT STEW'

Can you help me to learn more?