Healthy chicken Caesar

Ingredients

1 lemon
15 g Parmesan cheese
2 anchovy fillets in oil
4 heaped tablespoons natural yoghurt
½ teaspoon English mustard
1 teaspoon Worcestershire sauce
white wine

vinegar
extra virgin olive oil
1 small red onion
½ a small cauliflower (300g)
1 romaine lettuceolive oil
1 sprig of fresh rosemary
2 x 120 g free-range skinless chicken breasts
1 thick slice of wholemeal bread