Vinh Loi on Sherman Way between Tampa and Reseda Blvd. is a real hole in the wall, two-table (literally) kind of place.
They serve amazingly cheap and tasty Vietnamese food. Try the $2 Banh Mi, a big sandwich on a crusty baguette - but take the chilis out first unless you are of cast iron tongue.
I like the pho, or the bun (and the rest of it I will leave to the Vietnamese to pronounce - fortunately you order by number). Pho as you probably know is a noodle soup that comes with a sort of do-it yourself soup kit - the broth comes with chunks of tofu in it, and there are noodles, several different fake meat tofu products, herbs and sprouts to add.
The bun is dry (not brothy) rice noodles topped with cucumbers, carrots, fake tofu meat, chilies, sprouts, peanuts, and an eggroll. Served with a pleasant chili sauce on the side.
Both pho and bun are $5.
They also have a selection of Vietnamese grocery items - cookies, sauces etc.