Preheat oven to 220°C fan
Slice mushrooms into bite-sized pieces. Toss with oil, paprika, cumin and salt. Spread on a tray and roast 20–25 mins until golden and crisp-edged.
Finely shred cabbage. Thinly slice jalapeño. Toss with lime juice, olive oil and salt. Set aside to lightly pickle.
Slice onion and pepper. Heat oil in a pan over medium. Fry onion and pepper 6–8 mins until soft. Add garlic, paprika, cumin and oregano, cook 1 min. Stir in beans, tomato purée and stock. Simmer 5–6 mins until thick. Season to taste.
Blend avocado, lime juice, yogurt and salt until smooth. Add a splash of water if needed.
Warm tortillas in a dry pan, stacking under a tea towel to keep soft. Spread with crema, add beans, roasted mushrooms and slaw. Finish with hazelnuts, coriander and lime wedges.
