For a simple and fun hors d’ouevre, these Mini BLT Cups do the trick. They also fit in well with a ketogenic or paleo diet.

The ingredients are B—bacon, L—lettuce, and T—tomato, of course. But you also want to include some type of creamy dressing:
mayonnaise, aioli, chipotle mayonnaise, Ranch dressing, etc. I settled on cream cheese and was very happy with that choice.

TIP: Get the largest cherry tomatoes you can find. They still need to be small enough to be a single bite, but if they are too small, they are tough to hollow out and stuff.