The most common and most likely answer to this crossword clue is the 7 letter word BURRITO
I've seen this crossword clue in The Times
B
U
R
R
I
T
O
More clues leading to the result BURRITO
- Central American food — it's fed to donkey
- Our Brit cooking that's eaten in Mexico
- Little donkey fed with Italian or Mexican food
- Catch up with trio taking break for Mexican food
- Food, back massage and joint in Brazilian city
- Sticker, it’s on old dish
- Food in Central America is boxed – unless refrigerated at first – or it decomposes
- Bus mostly runs, or it fails to get Mexican’s fare
- Video’s ending after sticker put on it — it’s a wrap!
- Tex-Mex food — it will be eaten by donkey
Buddy explains!

The straight part
We know that "Mexican food" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case mexican food = burrito.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 BURRITO mean?
BURRITO noun- A Mexican dish consisting of a flour tortilla wrapped around a filling of meat and/or beans, cheese etc.