Anything along the lines of tapas or meze  or antipasti works very well.

Personally I love puff pasty things. I buy the frozen pasty sheets and then fill. The classic sausage is a basic. But also try seasoned cream cheese (with herbs or chili or so). Cheese. Etc.
A simple thing to do is making palmiers. Roll out the pasty, spread with some seasoning. Roll in from two end, slice, bake slices. Good fillings are either pesto or a mix of paprika powder, parmesan and an egg (to make it spreadable).

Dips are nice to dip in anything from vegetable sticks to bread, chips etc.

A nice cheese platter is always good (omit toothpicks and pineapples and gherkins and rather use some good cheeses.

I always make the mini calzones from jamies dinners book. I also take his recipe for chicken tikkka masala from the same book. I make up the tikka sauce  and marinade the chicken overnight in it then fry off the next day and put onto skewers. Another recipe is 3 cheese stuffed mushrooms. Use whatever size mushrooms you want. Take out the stalks and chop,add to a bowl also with 3 tbsp ricotta, 3 tbsp dolicilatte and 2tsp of parmesan, season and add breadcrumbs. Mix together and stuff mushrooms put in oven on 180c for about 25 minutes. 

Hello,

Family gatherings are a diplomatic minefield. A genuine desire to share your love of food and introduce your nearest and dearest to things they might not have come across can be misinterpreted as showing off. You may even find yourself labelled as a member of the 'Ponserati'.

Play it safe with a traditional English buffet:

sausage rolls
scotch eggs
white bread sandwiches, no crusts
cocktail sausages
chicken drumsticks
crisps
pickled onions
pickled gherkins
rolls and butter
Cheddar cheese
some sort of flan
Branston pickle

Job done... End of... Sweet as...