Cook the quinoa according to package directions and let it cool.
Greek-style Lunch Box Salad
Cut the cucumber lengthwise into quarters, cut it into thin slices and mix with the yogurt. Season with lemon, salt and pepper. Cut the peppers into strips and the onion into half rings.
Fry the Mediterranean pieces according to the instructions on the package.
Season the quinoa salad with lemon, olive oil, salt and pepper and toss in the olives.
Divide the peppers with the onions in one compartment, the quinoa salad with olives, and the Mediterranean pieces on some lettuce in another compartment. Spoon the cucumber yogurt separately in a bowl and put it in there.