Tesco carried canned pumpkin about six years ago, but I don't think it caught on here because I've never seen it since that year. (I saw the same thing happen recently with Saltines, packaged here as "American Style Snack Crackers".)
Since then, I've made my pumpkin pie, and other recipes containing pumking, from fresh pumpkins. I've even grown my own pumpkins in the vegetable patch.
But pumpkins are plentiful in the stores that time of year. It's extra work preparing it, but the results are out of this world. Because of the extra work, I tend to make lots of pureed pumpkin, then freeze it. Then I can use it in other things such as pumpkin bread, pumpkin stuffed cannelonis, pumpkin muffins, pumpkin-nut pate, pumpkin-chocolate cheesecake, etc.
Not being able to get ingredients I was used to forced me to get creative !
The first few years here, I tried to maintain having a traditional Thanksgiving. Then, because it's just another working day here, I've done variations, more of a "harvest" dinner on the Friday or Saturday where I could still make some of the traditional fare or dishes that used the traditional ingredients. Or, some years I've had a Halloween party, so Thanksgiving was lower key... I've varied things year to year.
I suspect this year when I'm back in Chicago,
real Thanksgiving will be a shock to the system!
Have fun! - btw, did you find any Cool Whip here?