Minced meat for dinner

INGREDIENTS: • onion - 300 grams • minced meat - 1300 grams • pickled cucumbers - 100 grams • cheese - 200 grams • eggs - 3 pieces • black pepper - 10 grams • salt - 10 grams • * toasted bread - 6 pieces • milk - 150 milliliters • breadcrumbs - 50 grams