Green’s Dictionary of Slang

veggie adj.

also vegie

vegetarian.

[UK]B. Chatwin Songlines 237: Always snooping in each other’s vegie picnic-baskets.
[UK]Guardian G2 30 June 24: A magnificent herb garden, healthy veggie fast food [...] are on tonight’s menu.
[UK]Guardian G2 29 Jan. 8: I’m in good company, Madonna and Julia Sawalha have both given up being veggie.
[UK]S. Maconie Pies and Prejudice (2008) 9: He and Sheila had the veggie lasagne.
[UK]D. O’Donnell Locked Ward (2013) 105: I wasn’t sure if all veggie meals looked like that.
[US]N. Walker Cherry 64: ‘I bet that’s the first veggie burger you’ve had in a while’.

In compounds

veggie scene (n.) [pun on the absence of meat n. (2)]

(US) in pornography, an image or film of sex between two females.

Las Vegas Weekly 8 Jan. 🌐 Porn Glossary [...] Veggie scene -- All girl scene, no meat.