Boursin appetisers (Mary Berry) - thinly slice a thin French baguette, butter slices on both sides, spread boursin on one side and put on baking tray, sprinkle over pinch of paprika and bake for 10min 200C. Very more-ish - looks like loads of effort but basically cheese and toast!
Cheese crispie biscuits/crackers (Sainsbo's do a good Taste the Diff one), small splodge of Branston Tomato and Pepper relish, top with thin slice of good cheddar or Wensleydale and sprinkle over ground cumin (best to buy ground stuff rather than grind your own in this instance).
To cheat with the quiche idea - buy one and get a really small pastry cutter and cut out the bits in the middle!
Make a Spanish tortilla and cut into small slabs.
Nice ready thin sliced granary, buttered or spread thinly with cream cheese, topped with thin slice of smoked salmon and cut into small squares or cut with your pastry cutter (if its sharp enough) - maybe cut bread with pastry cutter and then top with off cuts of salmon instead - sprinkle with fresh chives or dill.
Smoked salmon blini's are always yummy - you can buy the blini's altho' they're pretty easy to make and freeze.