I want to confront my mum about making pasta for dinner
Why would you confront her over pasta?
She forced me to eat a whole plate of pasta, that was not right
I'm sorry that happened to you, and you're right that she shouldn't be forcing you to eat so much. She should have just asked you to eat more instead of trying to force it.
I hate you, I never been told off like this before.
I don't understand what you are saying here, but if that is what you plan to say to your mom, I have to advise against it. What she did was wrong, but you could make it worse if you react with too much anger. Tell her directly that you have had too much to eat, but that you have gotten enough nutrition for the day.