Grain salad lettuce cups (Dani Valent)

Name: Grain salad lettuce cups (Dani Valent)
Prep time: 15 min
Cook time: 1 h 55 min
Total time: 1 h 55 min
Yield: 6 portions
Ingredients: 20 g dried shiitake mushrooms; 800 g hot water; 160 g farro; 1 tbsp Vegetable stock paste; 1200 g water; 140 g puy lentils; 100 g white quinoa; 10 raw prawns, peeled; 50 g olive oil; 1 tsp sea salt flakes; ½ tsp ground black pepper; 2 kale leaves; 6 sprigs fresh basil; 2 tsp lemon juice; 2 baby cos lettuce; 150 g feta cheese