Prosciutto-Stuffed Chicken Breasts

Ingredients

• 4 chicken breasts (about 150 g each)
• 100 g mozzarella cheese (thinly sliced)
• 1 tomato (thinly sliced)
• 1 garlic clove (crushed)
• 1 bunch fresh basil
• pepper (to taste)
• 4 slices prosciutto or lean ham (about 60 g in total)
• 1 tbsp extra virgin olive oil
• 2 tbsp extra virgin olive oil
• juice of 1/2 lemon
• 120 g mixed salad greens
• 1 bunch watercress (large stalks discarded)