Step 1 In a medium bowl, mix oil, parsley, dill, shallots, capers, lemon zest and 2 tablespoons of the lemon juice. Season the salsa verde with salt and pepper.
Step 2 Over each of 8 starter or salad plates, arrange 2 slices of smoked salmon. Arrange rocket over smoked salmon. Spoon over the salsa verde and top with radish and celery to serve.