This incredible dish is served with a fennel salad and a pea mash.
Preheat oven to 200C. Heat a large frying pan over high heat. Add 1 tablespoon of oil and cook lamb, turning for 5 minutes or until browned all over. Transfer to a plate and stand for 10 minutes or until cool enough to handle.
Meanwhile, combine herbs, zest and pistachios in a small bowl and season to taste. Evenly brush tops of rump with mustard and evenly scatter with herb mixture, pressing firmly with your hands to secure crust. Transfer lamb to a large oven tray and roast for 25 minutes or until cooked to your liking. Rest for 10 minutes before serving.
Meanwhile, using a mandolin or sharp kitchen knife, shave fennel, radish and onion into a large bowl. Add herbs, juice and oil; season to taste and toss well to combine. Stand at room temperature until ready to serve.
Process peas and broad beans in a food processor until roughly chopped. Heat remaining oil in a medium frying pan, add crushed pea mixture and cook, stirring, for 6 minutes or until warmed through; season to taste.
Divide crushed pea mixture and fennel salad among plates. Slice lamb into three and place on plates.
RECIPE NOTES & TIPS:
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