Place the cream cheese and smoked salmon on the board. Depending on the type of board you use, consider arranging the smoked salmon on a piece of parchment paper.
Add the sliced tomatoes, cucumbers, onion and microgreens to the board.
Transfer the cornichons and everything bagel seasoning to small dishes and place on the board.
Use the hard-boiled eggs to fill in any gaps on the board.
Arrange the bagels around the board or place in a separate container.