Combine first 6 ingredients in a bowl. Cut 4 (12 x 12 inch) square pieces of parchment paper. Fold each to form a triangle; open. Divide catfish among four papers. Top with red peppers, ham and 2 slices of lemon per packet. Spoon sauce over mixture. Close each packet to form a triangle; crimp edges to seal tightly. Arrange 2 packets on a microwave-safe plate. Microwave on High 6 minutes. Let stand 1 minute. Repeat with remaining 2 packets. Arrange packets on serving plates; open carefully at table. Serve immediately.
2.
Serves 4.
3.
In a conventional oven: preheat oven to 450 F. Place crimped packets on baking sheet; bake for 10-12 minutes.
