I'm amazed. Firstly that you buy pumpkin in a can. Surely fresh veges are available. Secondly it sounds like you don't have roast veges all that often. I know you have mashed potato with roast meat but do you also have roast veges? I'm sure you would all think we have different ways here.
I make roast veges as often as I can. Just a spray of oil and all in the one baking dish. My DH asks for mashed veges sometimes. I love roast veges because they are healthier as, except for some herbs they need nothing else.
We know that Americans didn't take to our national spread, Vegemite. Would it interest you to know it was developed by an American scientist working for Kraft.
I'd be interested to hear other stories about what you enjoy eating.
Try roast parsnip. Wonderful.