Finding something unexpected in your lunch can be unsettling—especially when it looks like a cluster of tiny brown balls on your lettuce. It might be surprising, but sometimes you may even find insect eggs in salad. If you’ve stumbled upon something similar while eating out or prepping greens at home, here’s what you need to know.

What Are Those Tiny Brown Balls in Your Salad?

Those perfectly round little spheres arranged in a tight cluster aren’t part of your meal—they may be insect eggs. More specifically, they resemble the eggs of a stink bug or another leaf-feeding insect. These bugs lay their eggs in neat patterns, often on the underside of leaves, which makes lettuce and leafy greens common carriers for insect eggs in salads.