Difference between stew and casserole :
Link
PS
Suet dumpling :
Buy a packet of Atora suet.
4oz self raising flour
pinch of salt
2oz suet
cold water - 4-5 tablespoons should be enough
Sieve the flour and salt into a bowl.
Add suet.
With a knife, mix as you slowly add cold water until you have a nice 'dough'.
Divide the dough into balls.
Place these on top of your almost ready stew or casserole and put back in hot oven until the dumplings are nice and brown - about 20-30 minutes.
Enjoy !
EDIT
If you're concerned about fat, buy Atora Light.
Less fat and one can hardly tell the difference in taste.