What's Your Best/Favorite Lunch Deal In The Castro?

Is this the best lunch deal in the Castro?

Post by Castro Biscuit.

$4 for a 5" sandwich, chips, and a soda is lunch deal that is hard to beat, but maybe one of readers has found something even better? What's the best vegetarian lunch deal? The best post-workout lunch deal? The best burrito deal? What's the best lunch deal you've found in the Castro? If you don't think you can beat the deal we found, where is your FAVORITE place to lunch?