Lasagne
Shepherds Pie
Chilli Con Carne
Chicken Casserole
Fish Pie
Lamb Tagine
Stew
Sausage Casserole
Curry
Paella
start with dips/platters as appetisers.
do a sunday roast with all the trimmings (the roast itself is actually quite easy)
finish with a baked crumble for dessert.
Cordon Bleu's are reasonably priced, taste good and are decently fancy.
make certain there is plenty of booze.