01 - Preheat oven to 350°F. Line an 8-inch loaf pan with parchment paper and lightly coat with oil.
02 - Place fish fillets in a saucepan, cover with water, and simmer over low heat for 6–8 minutes until just cooked through. Drain thoroughly and flake into pieces with a fork.
03 - In a large bowl, whisk together eggs, heavy cream, crème fraîche, Parmesan, lemon zest, and lemon juice until completely smooth and incorporated.
04 - Stir the chopped shallot, fresh dill, parsley, capers, and breadcrumbs into the egg mixture until evenly distributed.
05 - Gently fold the flaked fish and chopped shrimp into the mixture, being careful not to overwork. Season generously with salt and black pepper.
06 - Transfer the mixture to the prepared loaf pan, smoothing the top evenly. Drizzle with olive oil and bake for 30–35 minutes until set and golden brown on top.
07 - Allow to rest for at least 15 minutes before lifting from the pan. Slice into portions and serve warm or at room temperature.