These succulent sandwiches made with Crispy Oyster Mushrooms & Aji Verde are a spin on a traditional Peruvian roasted chicken recipe. The chicken is replaced with oyster mushrooms marinated in herbs and spices, and seared until crisp. The mushrooms are then layered on a crusty ciabatta roll, with sliced avocado, red onion, micro greens and the most delectable green sauce.