Rinse quinoa well in a mesh strainer, then add it to a medium pot with 3 cups of water. Cook according to package instructions until water is absorbed and quinoa is fluffy. Let it cool while you prepare everything else.
Stir together all Marinated Chickpea ingredients.
Spoon Marinated Chickpeas evenly into 4 large (32-oz) mason jars. Evenly divide ingredients into the jars in this order: chopped onion, feta, olives, cooled quinoa, halved cherry tomatoes, chopped bell pepper, chopped cucumber, lettuce.
Close lids and store in the fridge for up to 5 days. To serve, dump the contents of a jar into a bowl and stir!
