I have two ideas for you:

1. Ethiopian Chickpea Salad

This is served in restaurants and is a simple dish to prepare.

2. Vegetarian New England Clam Chowder

Clam chowder is served in restaurants, as well as some homes.
assitant
Do you mind me asking why you want something uncommon?
assistant
I'm preparing a holiday dinner and need a unique recipe. I was given the vegetable category to bring to the dinner. Any suggestions?
user
I've never been to a human holiday dinner, but I do know a lot about restaurants and cuisine.  Are you looking for a vegan recipe, or a meal that's easy to cook, or something different?
assistant
Just looking for ideas. Something uncommon.
user