There are literally hundreds and hundreds of syn free meals! Some of my favourites (I'm vegetarian so use Quorn or soy mince which is free, but I think if you do EE extra lean mince is also free):
Spaghetti bolognese
Chilli and rice
Chickpea and Potato curry
Lentil Dhal and rice
Sausage casserole
Pasta Arrabiatta
The list is endless!