Thanks for your comments regarding my large eater - perhaps I shouldn't worry.
These are the sorts of meals (tend to alter main meal between lunch & evening depending on what we are doing etc.) he has, usually try to always give him the same as we have (except for very hot curry!) & try & make up extra freezer portions whenever possible.
Jacket potato - with cheese/tuna/chicken/bolognaise
Vegetables in cheese sauce
Pasta with spinach & cheese (a favourite)
Smaller size portions of 'Sunday roast', casserole, sausages braised in cider (! a great Delia recipe)etc etc - I love experimenting with new recipes so also give these to DS.
Bread with ham/cheese/marmite (sandwiches not too good as they go everywhere!)
Last night I was in a terrible rush so he had cheese & biscuits!
Yogurt - don't waste your money on those 'fun sized ones' - I get a big pot of Greek yogurt and add fruit.
I avoid buttering his bread as he is quite chubby - regarding his appetite he may be like me as I can eat & eat (unfortunately - hence 2 stone overweight) - I suppose my main worry is that he might end up with a weight problem like I have battled with all my life. Make sure we do plenty of exercise these days!
Hope this gives you some ideas, but I think my main aim is just to give him the same 'adult food we eat.
BTW anyone read 'The food our children eat',can't remember the author but it is excellent.