Maria's Italian Tuna Salad

• 1 can of Italian tuna in olive oil
• 1/2 teaspoon of black pepper 
• Salt (optional) 
• 1 teaspoon Extra virgin olive oil
• Oregano (dried)
• Fresh parsley, minced (optional)
• Onion finely chopped 1 small red (optional)
• Pitted Black olives (10) chopped
• 1 medium vine ripe tomato  
• Mix the above in a medium size bowl.  This can be eaten as is, or on an Italian roll.