| 1/2 tablespoon white peppercorns |
| 1/2 tablespoon dried dill seed |
| 1 tablespoon dried mustard seeds |
| 1 pound firm-fleshed boneless, skinless white fish fillets |
| 1/2 tablespoon dried mustard seeds |
| 1/2 tablespoon white peppercorns |
| 2 cucumbers, peeled and thinly sliced |