Ah man, I was so busy with work that I didn't see this!

*rolls up sleeves*

Sushi:
Commercial Sushi - on Commercial Drive by the skytrain, great sushi for low prices - casual atmosphere

Burgers:
Five Guys on Robson Street - They are very low carb accommodating and the burgers are super tasty
Romer's Burger Bar in Yaletown or Kitsilano - Lots of options, create-your-own options, and different types of meat available (lamb, beef, turkey, etc) and definitely LC friendly.

Mexican:
Las Margaritas in Kitsilano - Fajitas without the tortillas, taco salad (skip the shell), and just a fun atmosphere

Western/Mixed Cuisines:
Cactus Club - yes a chain, but they provide LC offerings such as their blackened chicken ceasar salad or steak.
Earls - dry ribs or wings - their cedar plank salmon is good as well.

Pubs:
Storm Crow Ale House - very cool, nerd-esque bar http://www.stormcrowalehouse.com/ that lets you create your own burgers and they also have wings...and just a cool vibe with games, if you're interested
Butcher & Bullock - standard pub fare but good vibe and good drinks!

There are plenty of Vietnamese restaurants in the area that serve pho, which you can get without noodles.

I don't know how long you will be here or what areas you will be in, so I tried to give a wide variety of choices in different neighbourhoods.

I apologize for the rain. It's just our thing.

If you're looking for things to do that aren't food related:

https://www.flyovercanada.com/
http://vancouverchinesegarden.com/
The Olympic Cauldron from 2010 Winter Olympics
Steveston Village - if you're a fan of the show Once Upon A Time, they film there

Source: Vancouverite.

I second Five Guys and Las Margaritas. From semi annual trips back to the coast, where I grew up, lol.

@GlitterRayne How was your trip?