This is killing me

I'd be more understanding if it was some strange, new dish that I was trying, but this is the same sandwich that he has been eating every day for months.  I am not putting up with this nonsense from him.  He asked for it, he's going to eat it.  

He came running back over to where I am sitting, screaming.  I picked him up and put him back.  He was crying so hard that I thought he might throw up.  Now he's calm and keeps calling out, "Mommy!" and then telling me I am hurting his feelings.  Now it's, "Mommy, I am talking to you."

Isn't this supposed to get easier at some point.

ETA:  When he finally calmed down I walked over and sat next to him.  I explained again that we don't waste food and that I will not tolerate temper tantrums from such a big boy, that if he's screaming at me I won't hear him, I won't look at him, it will be like he's invisible.  I promised that if he talked to me with respect, that I would talk to him the same way.  Then I asked what I could do to make him want the sandwich.  He asked me to cut the crusts off.  I did and he ate it.