Egyptian egg salad

Name: Egyptian egg salad
Prep time: 10 min
Cook time: 5 min
Total time: 15 min
Ingredients: 2 large eggs; 1 lemon juiced; 1 tbsp tahini; 1 tbsp rapeseed oil; 1 red onion chopped; 3 large garlic cloves finely chopped; 1 tsp ground cumin; ½ tsp cumin seeds; 400g can borlotti or fava beans juice reserved; 2 Little Gem lettuces cut into wedges; 2 tomatoes cut into wedges; sprinkling of dried chilli flakes and roughly chopped flat-leaf parsley, optional