# Grate the 
onion on the crumbs. Mix, when it turns to puree, add the remaining meatball ingredients, and knead for about 8-10 minutes.
# While refrigerating the meatballs mix, peel the 
potatoes, and slice them into 1/2 inch wide circles, slice the 
tomatoes also, and slit the each 
pepper into 2 pieces and remove the seeds.
# Grease the oven tray with 1/3 cup oil. Place the 
potato slices on the tray. Place the big sized meatballs on the 
potato layer with spaces between them.
# Place the 
tomato slices and 
pepper slices into the spaces between the meatballs. Sprinkle salt all over.
# Cook it in the oven which is preheated to 374 F, until the meatballs turns to red. Serve hot.