The most common and most likely answer to this crossword clue is the 9 letter word PRIMAVERA
I've seen this crossword clue in The Guardian
P
R
I
M
A
V
E
R
A
Buddy explains!

The straight part
We know that "with fresh vegetables" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case with fresh vegetables = primavera.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PRIMAVERA mean?
PRIMAVERA adjective- Describing a light vegetable sauce, especially one served with pasta.