an erlicher yid eats for one reason only, he eats so that he/she can have strength to serve Hashem, which comes to mean that if you have reached this level & have removed these physical pleasures of eating all these fancy desired foods etc…. then there is really no difference between eating for dinner bread & water versus steak & soda, you have only one reason your eating so you can continue to have coach to serve Hashem & do mitzvos.
if you go out to all these restaurant a lot (not just once a week) then you should not fool/corrupt yourself into thinking you are just going to eat to have strength but know the truth yourself that you are going to enjoy that specific restaurants pleasure food