Begin to heat grease for deep frying in deep pot or pan, deep fryer, or crockpot. Meanwhile, in small to medium sized bowl combine bread crumbs, seasonings, chopped onion, (and grated parmesan if desired) and Mix well. In separate small bowl crack and mix up eggs with a pinch of salt and pepper to prepare for breading. Wash tomatoes (and red onion if frying that also) and slice into half inch thick slices.