Crush the cookies and mix with ground almonds and melted butter. Place all in a parchment paper lined cake form and bake for about cca 10 minutes at 390* F.
Let it cool.
Mix 2 ricotta cheeses, mascarpone, vanilla sugar, lemon zest and spread the mixture on the layer of baked cookies. Push in berries of your choice. Add a layer of melted chocolate. (In a water bath melt chocolate with a bit of butter.)
Mix the tuna (no oil) and mascarpone. Cut the tomatoes into very small pieces and add them with the thyme leaves to the tuna mixture. Use the immersion blender to mix all ingredients until completely smooth. Add salt and pepper to taste.