Drain the tuna and put in mixing bowl, add half the pack of chips(Crushed),chopped onion and can of mushroom soup
In mixing jug blend the eggs and milk.
Scoop the tuna mix in to an oven dish cover with egg mix and put the remaining chips over the entire pan. Then put the cheese over.
place in a 180 degrees celsius
Bake for 30min or till cheese turns brown
Serve with salad or bread