Baked fish with olives and tomatoes is a staple of coastal mediterranean kitchens. This high protein dish is a fresh, healthy family dinner ideal for a dash diet or calorie deficit plan.
Preheat the oven to 400°F (200°C) and lightly oil a large baking dish to prevent sticking.
Pat the white fish fillets dry and lay them flat in the prepared baking dish without overlapping.
Scatter halved cherry tomatoes, sliced red onion, and pitted kalamata olives evenly over the fish.
Drizzle extra virgin olive oil over the ingredients, sprinkle with minced garlic, dried oregano, kosher salt, and black pepper.
Bake uncovered for 20–24 minutes, or until the fish is opaque and flakes easily with a fork—avoid overcooking for best texture.
Remove from the oven and immediately top with fresh chopped parsley; rest for 2 minutes before serving to allow flavors to meld.