Soldiers get initially unexciting range of food (4)
I believe the answer is:
Here is my best explanation:
'range of food' is the definition.
'soldiers get initially unexciting' is the wordplay.
'soldiers' becomes 'men' (I've seen this before).
'get' says to put letters next to each other.
'initially' suggests taking the first letters.
The initial letter of 'unexciting' is 'u'.
(Other definitions for menu that I've seen before include "List of items to choose from as in restaurant", "Range of dishes available", "Food programme of restaurant", "Restaurant's list", "Food list", "List of food items on offer", "Cafe's list", "list of available dishes", "Tariff" and "Restaurant fare".)