Seared tuna with potatoes, baby beans, frisée and olive vinaigrette

1.Cook potato in a saucepan of boiling salted water until tender (15-18 minutes), drain and set aside to cool slightly.

2.Meanwhile, blanch beans until bright green and tender (1-2 minutes), drain, refresh, halve lengthways and transfer to a bowl. Add frisée and refrigerate until required.

3.For olive vinaigrette, pulse ingredients in a food processor until semi-finely chopped, season to taste and set aside.

4.Heat oil in a large frying pan over medium-high heat. Season both sides of each piece of tuna, add to pan and sear until browned (1-1½ minutes), turn and cook other side until browned (1-1½ minutes). Transfer to serving plates, squeeze a little lemon juice over.

5.Add potato to bean mixture, season to taste and toss to combine. Transfer to serving plates, drizzle with resting juices from tuna, spoon olive vinaigrette over everything and serve.