4 veal escalopes, flattened, about 150 g (5 oz) each
1 teaspoon grated lemon rind
1 small onion, chopped
freshly ground black pepper
1 tablespoon chopped sage
4 large lettuce leaves
20 g (3/4 oz) butter
1 tablespoon olive oil
150 ml (1/4 pint) dry white wine
150 ml (1/4 pint) chicken stock
2 parsnips, peeled, chopped and cooked
2 tablespoons natural low-fat yogurt
2 canned red pimentos
1 tablespoon chopped chives
salt