You ‘ll never get bored of this one
Take your slice of bread , toast it , and apply butter to one side , then put your buttered side of the bread on the pan , let it cook for a few seconds ( 5-7 ) and then spread cheesespread on the plain side and add cooked onions , you can also add a slice of cheese ! :d then cover it with another slice of bread , and put it in your sandwhich maker ..,
<33 ! Done !! Hope this helped ..
p.S the reason i choose low fat butter is , it has not much of salt in it ! :d