Tomatoes on toast
Brush a heavy frying pan with oil, and place over a high heat.
Add the tomato slices and fry them for 3 minutes, turning once until soft and slightly blackened.
Meanwhile, lightly toast the bread under a grill or in a toaster.
Put the tomatoes on the warm toast. Drizzle each portion with a little olive oil and balsamic vinegar. Sprinkle with the Parmesan cheese shavings, season with salt and pepper, and serve immediately.