Satisfied having consumed large US dish with cheese (4)
I believe the answer is:
melt
'us dish with cheese' is the definition.
I can't tell whether this definition defines the answer.
'satisfied having consumed large' is the wordplay.
'satisfied' becomes 'met' (as in 'met the conditions of his contract').
'having consumed' means one lot of letters goes inside another.
'large' becomes 'L' (eg in clothes sizes).
'met' going around 'l' is 'MELT'.
Can you help me to learn more?
(Other definitions for melt that I've seen before include "Reduce from a solid to a liquid state" , "Become liquefied" , "(Of snow) turn to water" , "Liquefy; become tender" , "become soft" .)