If you have a chafing dish,
browned well, cut on the diagonal and served in a marinara sauce go over well.
It's easy to make little meatballs, cook them ahead of time, and freeze for the future. Anyway, these can be served with a variety of sauces, Asian, Italian, Norwegian. They always go over well. You can buy big bags of them already frozen to save time. They won't taste as good as homemade, but I've seen people devour them nonetheless.
A nice cheese plate with 3 to 5 big wedges of a nice variety of cheeses, decorated with grapes, persimmons, fruits of the season. Serve sliced baguettes and crackers on another plate.
Tiny sandwiches - like baby Reubens on different types of rye. Mix a creamy horseradish with chopped sauerkraut put together with pastrami and corned beef.
Deviled eggs, most people love them.
Make crostini and top them with herbed cheese or chevre, top with small pieces of spiraled beef, and thorw a few capers on top, or smoked salmon with a little fresh dill, or, or , or, you get the idea.
A good hummus or babaganoush, served with homemade pita chips and sliced red bells, jicama, carrots, cucumbers and celery, and blanched green beans.