Because the sweetcorn and tuna can be eaten cold it does not matter if the tuna and sweetcorn are hot because you will be eating it cold.
You can eat this dish hot if you wish; both hot and cold are really nice.
You can add some mayonnaise and mix until its even; add mayonnaise to your desired taste.
This is a good healthy meal if you leave out the mayonnaise.
alternatively use all the same ingredients but if you dont have mayonnaise use salad cream. and if you like red and green peppers chop em up fine and throw that in too. - 20 Jan 2016