Sandwich with grilled courgettes and Gouda cheese

• Cut the courgettes lengthways into thin slices and grill on both sides in the grill pan without adding oil or on the grill.
• Sprinkle with olive oil, scatter finely chopped sprigs of parsley over them and leave for half-an-hour.
• Cover four slices of the bread generously with the slices of courgette and cheese, put another slice on top, press firmly, and cut into four triangles.

Variations: Grilled aubergines or peppers make equally good sandwiches. If you don’t want any cheese, put in a fried fillet of pork, a chicken breast or pieces of turkey into the sandwich.