We had all the ingredients for a Greek salad ready to go, but didn't feel like a salad was good finger food. So, we threw it all in the food processor in a couple of batches and what we ended up with was delicious.
Puree the cucumber, tomatoes and black olives in a food processor, then transfer to a colander to drain. Add the spinach and yogurt to the food processor and puree. Drizzle in the olive oil, add a large pinch of salt and process until well combined.
Transfer the spinach mixture to a bowl using a rubber spatula. Crumble in the feta, add the tomato mixture and lime juice and mix well to incorporate. Check for seasoning, then serve as a dip with tortilla or pita chips.