The next best thing to Vietnamese sandwiches are the BBQ entrees.
I just recently went to a brand new deli that makes the best BBQ pork noodles (bun thi nuong) here in California.
The place is at the Fruitvale BART station, called Saigon Wraps. I love those BBQ pork noodles. The only other place I know is the one in North Beach but that place is a rats nest.
I didn't try their specialty sandwiches or spring rolls but there noodle entrees at $4.50 is a bargain.
I went there a few times and depending on the time of day, they grill to order or re-grill the meat.
The fish sauce is sweet. I've bought a few an just re-microwave them later (just remember to take out the salad, sauce).
The place is real small but really nice. New building, new construction, new kitchen. The owner told me it took a year to build it.
It almost looks like a chain but it has a nice touch. I thought it was going to be expensive but I was surprise the sandwiches are only $2.50. I figure, they need to re-coup their investment.
The first place I ever went to where Claude Challe and Buddha Bar (ethnic, euro french lounge) was playing on the stereo. Reminded me of being on Khao San Road or in the hippy backpacker quarters at Ho Chi Minh (during my travelling days).
And also, if you go there, you gotta try the sugar cane juice. they have bushels of sugar cane and grind them on the spot.