When we have a roast, I always do potatoes, onions, pumpkin, and then we have beans, peas, carrots or sometimes brocolli or cauliflower with cheese sauce. I like them all, but I can't go past roast spuds, peas and carrots.
Definitely Roast potatoes,and Pumpkin!! I could fill up on these and not bother with meat a lot of the time!!!! And now,though it is only a bit after breakfast time,I am very tempted to go and cook a batch....Hmmmmm! For lunch maybe?!!!!
My dad always did the roast potatoes in the good heavy stainless steel electric frypan( I have the same sort,NOT non-stick!!!),with schmaltz and salt and pepper!!! Oh!! To die for,and takes no more than an hour from woe to go!!! Only one turning at half time and no work at all!!!
I love all roast vegetables but the nicest would be pumpkin. The most beautiful pumpkin I had was when I went to Queensland. It was full of flavor. Food in adelaide can be tasteless sometimes unless you use a lot of spices.