Couldn't be easier but so tasty with just a shop bought squash has made up my mind to grow some next year.
Take a couple of very large knobs of butter and melt them gently in a large pot.
To that add about 2 inches of coarsely chopped ginger (3 inches you love ginger) and sautee it for 2 to 3 minutes.
Add a diced whole squash, a little olive oil and water and cook until done. Eat as cubes, roughly mashed or nealry pureed.
I used it as a base for some pork fillets in Calvados cream sauce and was superb so now on my list of comfort food!