Need answer some time this week. 
I’m considering jalapeno poppers or deviled eggs, but I’m interested in hearing other ideas.
Bonus points if it’s something you’ve actually made and the whole wide world raved about it.
This is for a group of 10, if that matters.
Thanks!
mmm
Does it have to be a recipe/homemade?
I couldn’t tell you the brand, but I’ve had really good frozen/store bought spanakopita at a party (thrown by someone that owned a restaurant and knows how to cook).
I do a pull-apart loaf in a Bundt pan that is basically a bunch of tiny rolls filled with a small piece of cheese. Grease 'em all up and put them in the Bundt and bake. Turn it out and you have a Bundt loaf with pieces cheese-stuffed roll that are about 2-3 bites each. Want it? I’ve also done it with small bits of sausage in half the rolls, but that doesn’t fit the request.
ETA: it’s all from scratch, but you could probably use biscuits from a can to do the same thing. Well, not completely from scratch - I don’t make the cheese.
If dairy’s OK, can’t go wrong with a spinach artichoke dip:
Baked Brie in Puff Pastry with Raspberry Jam. Yeah, it’s supposedly a holiday thing, but it’s so good we sometimes make it randomly. Serve with crackers or warm, home-made bread slices.
Celery sticks with blue cheese. So very simple, yet tasty.
If you want to go totally Vegan, how about guacamole and chips? Here’s Jack White’s recipe from his concert rider:
Vegetarian, but absolutely not vegan (cheese and butter).
Make a batch of spinach saag (many options, I use this slow cooker option without the fenugreek) - buy a batch of pre-made puff pastry sheets, thaw and cut into squares. Make small cubes or shreds of paneer, or a mild flavored cheese such as Monterey jack, and place a small cube or two along with a dollop of saag just off center of the squares, use an egg wash along half the sides of the square and fold over to form a triangle. Apply mild additional pressure along the open sides (or use a fork) to better seal.
Bake.
Highly flavored with the saag, a bit hot cheese for a flavor contrast and the gooeyness, flakey, buttery crust.
Made a batch this weekend in multiple sizes for the wife and I.
Simple, fresh pineapple
I brought this to a recent party and it was a big hit. They were quickly gobbled up. Easy finger food.