My boyfriend wants me to make him some nachos - I've never made them before and I don't know where to begin!
All you gotta do is get some tortilla chips and cover them with cheese  and eat them like you would a snack.
Well that sounds pretty easy!  Do I have to put them in the oven to melt the cheese?
Well most Mexican nachos from Mexico usually have a liquidy cheese that doesnt require heating, But I think its ok to microwave it. 
He says he wants them loaded - what other toppings can I add to them to make them loaded?
For loaded nachos id suggest adding lots of beef and beans and even some really good salsa. oh and dont forget the sour cream.
Who was it that came up with Nachos anyway?
It was a person names Ignacio Anaya who created the dish around the year 1943