I took a couple of pics of one I made recently. The bottom pic is of Willow's serving.
Brown about 1 lb ground beef in a dutch oven or skillet. Drain off the grease.
Add 1/2 - 1 chopped onion and fry a little more.
Add a stock cube and a little water (i use gravy granuals). Plus some frozen veggies, if desired.
Meanwhile boil up potatoes and make mashed potato (not too creamy).
When the ground beef and veggies are cooked, pour into a greased baking dish and allow to cool a little.
Spread mashed potato on top and fluff or score with a fork to make it look pretty on top.
Bake in a preheated 375F oven for about 40 minutes or until beginning to bubble around the edges. I turn mine up to 400F about half way through sometimes.