У нас хорошие блюда, на ваш вкус?
It's a question, like "what do you think about our meals? How are they to your taste?"
Without "на ваш вкус" it would've sounded like generalizing, like:
"Are they good <not personally to you but in general, maybe you've heard about us and our meals>"

У нас есть разные блюда на ваш вкус.
The "на ваш вкус" is a redundant thing, it sounds like a faulty attempt to please the visitor.