How to Make It
Make the pickles: In a medium saucepan, combine vinegar, 2 cups of water, sugar, salt, and bay leaves. Bring to a boil over high heat. Meanwhile, place golden beets, red beets, onion, and cucumber in separate lidded, heatproof containers. Divide boiling liquid among containers; cool to room temperature. Cover and chill 8 hours or overnight.
Make the caviar cream cheese: Stir together cream cheese, shallot, and lemon zest until smooth. Gently fold in roe; chill until ready to serve.
To serve, place pickles, caviar cream cheese, salmon, trout, herring. caperberries, mushrooms, and peppers in small bowls or on a large platter. Serve with mustard, toast slices, and crackers.