For the fried trout with wild garlic stuffing, first prepare the fish: Rinse the trout in cold water and rub dry with a cloth. Drizzle with lemon juice and season the outside with salt and pepper. (Grate some lemon zest and set aside for the stuffing).
For the stuffing, rinse the wild garlic leaves with cold water, spin dry and chop finely. Remove the crusts from the toast and crumble in a food processor. Whisk the cream and egg, add the wild garlic and season with lemon zest, salt and pepper. Stuff the trout with the wild garlic mixture and roll in flour.
Heat a mixture of olive oil and butter in a pan and sear the fish on both sides. Lift out and place side by side in a baking dish or on a baking sheet. Pour the oil over them. Cover the dish with aluminum foil and cook the roasted trout with wild garlic stuffing in a preheated oven at 180 °C for about 8 minutes.