Chop the fillet steak very finely with a knife. Do not chop it in a blender as the meat will be made too smooth.
Put the minced beef in a bowl then add all the remaining ingredients and mix together well with a fork. Taste the mix and adjust the seasoning with a little more salt or a drop of vinegar should you so wish.
Divide in four and neatly and evenly press over the crispbread.
Serve immediately.