The Mahayana Buddhist sect is largely vegetarian. Generally it is the religious who follow this practice more so than the lay faithful but this depends on where and when. In China there are a number of Buddhist Restaurants some part of a monastery others associated with a monastery and use the income for capital support. I have enjoyed a few in China; Chonqqing, Guangzhou and Wutai Shan. The most interesting aspect of it was the near impossibility to distinguish this vegetarian food from meat equivalents. Dishes like Braised Duck, Sweet and Sour Chicken, Szechuan Tofu with pork and a number of others. The appetisers were just as convincing produced as meat like and flavour and texture wise very indistinguishable from the intended similarity.

The images pass for meat: S&S Pork?

Some foreign travellers were quite sceptical about it being truly vegetarian. Part of this was due to their perception of intention and why be deceptive in disguising non-meat food as meat food if the intention is not to eat or enjoy meat. Of course this is flawed as it is a rule and in sympathy with the Mahayana philosophy of karma. That is not to kill animals for the sake of food and even a scale of importance of various animals so that at times of essential need the guidelines provide direction on what is permissable etc.  Jainism, a relatively modern evolution of Buddhism teaches that killing plants for food is a philosophically negative action. Theravada Buddhism on the other hand allows meat eating very freely with respect with a few clauses added like specifically killing animals to feed the monks, is unacceptable.

The bottom line of the Mahayana tradition of vegetarianism is that it is a "rule" and it isn't necessarily the preferred cuisine of the adherents. To prepare non-meat dishes that resemble meat dishes is an honest alternative and a pleasant experience for those whose palates don't normally enjoy basic vegetarian dishes.
The "Buddhist Cuisine" is vast and there are recipes produced for creating dishes for this purpose. It's an interesting cuisine to wander.