You are your Core
Humans were made to overcome and adapt this life. A person may change his mind, his perspective, his whole attitude on something afterwards,
however he or she will still be the same person regardless because they will still have the same values and morality they came with.
After all change and adaptation is growth no mater how painful it can be.
In your example of the meal for instance, let’s say you ordered Filet Mignon, rare with asparagus.
It comes, it is a beautiful plate and smells delicious. Cutting into the filet, you see that it is cooked to perfection and as you put it in your mouth, ahhh this is the most delicious cut of beef you have ever tasted! The asparagus is equally delicious and cooked to perfection! In fact the dish is so good no salt or pepper or other condiments are required! The Filet cuts like butter and tastes just as good.
So you are now finished.
Of course you pay the tab because you are paying not only for the meat and greens but also the service provided that you would not have gotten at home had you cooked it yourself.
Also, at home you would not have a five star chef cooking your meal so the experience would be totally different.
Now are you the person different because of your experience?
No. You will never become a different person from one experience unless it’s a pretty hefty experience.
Normal situations you will stay the same person, however, you may have learned something from that experience.
It is natural for people to learn and grow, but most people keep their core values and beliefs through out their lives.