"A restaurant without food"
Translation:음식이 없는 식당
For adjectives, you don't need to add the marker "이/가". The adjective is joined with "있는/없는" directly as one word without "이/가"
For example; An Interesting book = 재미있는 책
However, with nouns, you have to include the marker "이/가" to the noun as one word before following it with "있는/없는".
A child with a book = 책이 있는 아이
Tea with milk = 우유가 있는 차