Prepare the hot items: Cook mini pancakes according to mix directions and toast waffles until golden brown. Keep warm.
Assemble the sandwiches: Layer 4 oz roast beef and cheddar on slider buns, and the remaining 4 oz roast beef with provolone on halved bagels. Secure with toothpicks if needed.
Prepare the fruit and cheese: Wash and dry all berries, grapes, kiwi, and pineapple. Arrange brie and gouda on a large wooden serving board alongside the crackers and nuts.
Build the board: Place small bowls of jam, honey, and chocolate hazelnut spread on the board. Surround them with the warm pancakes, waffles, and assorted pastries.
Fill in the gaps: Tuck the fresh berries and fruit chunks into any empty spaces on the board for a full, abundant look.
Set up the beverage station: Pour orange juice into a carafe and serve alongside chilled sparkling wine and fresh strawberries for garnish.