I always find a way to eat something #vegan in any restaurant. Salads, potatoes, rice. But i mostly eat from supermarkets as I mostly eat raw cereals/seeds/nuts & raw fruits/veggies.
Hare Krishna cook awesome veggie food. They used to run a restaurant in my town. Good stuff. Vegan hipster can just fuck off.
We don't have "all you can eat" places. At least I have never seen one. I have seen those in US. Food quality is shit, so I avoid. Quality over quantity keeps you healthy.
There's varying quality. I've found that restaurant quality/price ratio heavily depends on taxes and regulatory pressure. Also in bigger cities like Chicago there's restaurant cartels.