My first meal was mexican eggs. That is to say in a bowl I mixed 1 egg, 1 oz of cheese and 1/4 cup of salsa. Stirred it all up and scrambled it. It was delicous.
If you are going for lunch I would suggest fish for your first meal simply because it goes down so easy. If you don't like fish I often get a big shrimp cocktail.
If none of that appeals to you then get your grilled chicken but you most likely will have to have some sort of sauce on it so it slides down easy. Or just cut it into very small pieces and chew chew chew.
Hope that helps. Enjoy