Terrific Thai Fish Cakes with Spring Salad

• 3 tbsp extra virgin olive oil
• 250 g white fish fillets
• .25 cup coriander (cilantro), stems removed
• 1 tbsp corn flour
• 1 tbsp fish sauce
• 1 egg
• 1 medium sweet potato, diced
• 100 g green beans, roughly chopped
• 60 g salad leaf mix
• 1 Lebanese cucumber, sliced
• 2 tsp lime juice