Quick Tomato Sauce

Once upon a time there were tinned tomatoes and, lo, they were an common sort of food eaten in transport cafes with bacon and a fried slice. And Elizabeth David did visit the Mediterranean and discovered sweet luscious red plum tomatoes and was mightily wrought by them and did market the idea of them in her gastroporn works of the lean post-war years when Britons did eat Spam and other abominations. And we did read her words and agreed with them, but for many moons no such tomatoes existed