I used to buy a pie when I lived in Henley on Thames from the local butchers which they called 'Humble pie ' and, so far as I can recall, it went a little like this:
Quantity of shortcrust pastry
2 Large potatoes sliced into thickish slices boiled and cooled
300g Pork sausagemeat
3 Large tomatoes sliced
100g Strong cheddar cheese grated
salt and pepper
Half a teaspoon mixed herbs
Preheat oven to 160c
Line a pie dish ( I used a standard glass dish serves 4 ) with half the pastry, arrange the potato over the base.
Mix herbs, salt and pepper into the sausagemeat and press gently onto the potato.
Cover the sausagemeat with the sliced tomato and then the cheese.
Cover with remaining pastry, eggwash and bake in the centre of the oven for about 30 minutes, turn oven up to about 180c for a further 15-30 minutes until golden brown.
It's a lovely, simple, tasty pie, eaten hot or cold, everyone loved it.