For the solo Halloween enthusiast:

1.  The Jolly Green Giant
While you may prefer organic offerings to the Jolly Giant, this will always be THE poster boy of veggies.  Also makes a great family costume as you can dress the kid up as Giant Jr.

Jolly Green Giant

2.  Blueberry Muffin
There’s no denying this costume’s appeal.  The only hangup might be the price — it comes in at a cool $659.  Maybe some homemade crafting is in order.

Available here, for an arm and a leg:
Blueberry Mascot

3.  Vegetarian Sushi (eco friendly)
This costume is not available at any outlet, so you’ll have to craft it yourself.  Use packaging peanuts for rice and felt or other materials for the roll.  For a rough idea, check this kids’ version out.

Via: Coolest Homemade Costumes

4.  Ramen Noodles
Perfect for starving college types (or starving writers).  The costume will have to be homemade… so quality might be an issue depending on your talent and high-quality color-printing resources.

Via: WTF Costumes

Here’s some creative Halloween food costumes for couples:

5. McDonald’s Fries
Greasy fast food and death — they just seem to go hand on hand.  This costume works on many levels. The fries can either be handmade from red and yellow felt or be ordered online. The grim reaper can also be handmade or bought at major Halloween shops.

McDonald’s Fries Costume

6. Mr. Potato Head

Many of us vegetarians love ‘taters.  For a fun trip back down memory lane check this classic mens food costume out.

Tommy Tater (a/k/a Mr. Potato Head) Adult Costume

7. Gingerbread Man

With some quick alterations, you should be able to make a second one look woman-ish, and you’ll be set to impress.

Gingerbread Man Adult Costume

BONUS ENTRY: Dirty Martini Costume

Who says you have to go as food. Not us. No way.

Dirty Martini Costume

7 Halloween Food Costume Ideas For Vegetarians is from groovy vegetarian