In a food processor, combine raspberries, olive oil and balsamic vinegar, pulse a few times, until berries are mashed, the consistence of a berry glaze or light jam.
In a bowl, combine chopped ingredients, mix with berry mixture.
Brush catfish fillets with the Worcestershire sauce and sprinkle with the ground pepper.
Place fish on a preheated grill over medium coals, about 4 to 6 inches from the heat. Grill for 4 to 5 minutes.
Brush again and turn; grill about 5 minutes longer, or until fish flakes easily with a fork.
Serve and enjoy!