Makes 6 servings:

• 6 slices of tender beef 1/2 cm thick
• 1 medium onion sliced finely
• 1 tbsp of salted capers
• 1 bottle of tomato sauce
• 1 cup of white wine
• Extra virgin olive oil
• Salt and pepper to taste
• 1 pinch of dry oregano

Coat the slices of beef with a little olive oil and place in a slightly oiled baking tray.

Season with salt and pepper, sprinkle with the finely chopped onion, the capers, oregano, and cover with the tomato sauce and the white wine.

Put in a pre-heated oven for about 20 to 25 minutes and the meat is thoroughly cooked.