this is the starting of my six layer shepherds pie, I have a few other pictures but for you to get the gist of it and see most of the ingredients I posted this one.
Layers are, ground beef mixed with diced mushrooms and onions, a layer of sliced mushrooms a layer of fresh peas a layer of fresh corn a layer of mashed potatoes (that do not come from a box :P mashed potatoes are supposed to start with actual potatoes) and a layer of two blend finely grated cheddar.

If you would like my full recipe please send me a private note.