Tilapia Topped with Shrimp Relish Wrapped in Foil Packets
4 (6-8 oz.) fillets of fresh fish like Tilapia, Catfish, Speckled TroutOlive oilKosher salt, fresh black pepper½ red onion, chopped1 T. fresh thyme½ (8-oz.) container sliced baby portabella mushrooms1 dozen (of each color-red/yellow) cherry tomatoes, halved3 mini peppers (red, orange),…