Roast the pine nuts in a pan without fat, remove them. Peel and finely dice the onion. Knead minced meat, egg, onion, breadcrumbs and pine nuts. Season with salt, pepper and thyme.
Form small balls from the dough. Heat 1 tablespoon of oil in a pan. Fry the meatballs for 8 minutes. Clean, wash and drain the salad. Drain the corn in a sieve.
Wash, clean, quarter and seed the tomatoes. Cut the tomato quarters into small cubes. Season vinegar with salt, pepper and sugar, add oil. Fold tomato cubes into the marinade. Mix salad and corn and arrange on plates with the meatballs.
Spread the marinade over it. Grey bread tastes good with it.