1. Preheat oven to 400°. Divide first 6 ingredients among 4 (17-inch) squares of parchment paper. Top each with 1 fish fillet. Sprinkle fish with salt and pepper; drizzle with olive oil. Squeeze juice from lemon over fish; place 1 lemon wedge on each fillet. Bring parchment paper sides up over mixture; double fold top and sides to seal, making packets. Place packets on a baking sheet.
2. Bake at 400° for 15 to 20 minutes or until a thermometer registers 140° to 145° when inserted through paper into fish. Place each packet on a plate, and cut open. Sprinkle fish with basil. Serve immediately.