2. Preparing the Batter
Preheat the oven to 200°C (about 400°F). In a large bowl, beat the eggs with a whisk. Add the well-drained tuna and break it up into small pieces. Stir in the breadcrumbs, grated Gruyère cheese, and the sautéed zucchini. Mix everything until smooth. Season with salt and pepper to taste.
3. Baking
Pour the mixture into a greased or parchment-lined baking dish. Bake at 200°C for about 40 minutes, until the surface is golden brown and a knife inserted in the center comes out clean.
