Chicken Egg Grilled Sandwich

Name: Chicken Egg Grilled Sandwich
Ingredients: 8 slices Brown Bread; as required Butter; 2 cups Chicken Pieces (Marinated, Steamed and Chopped into bite sized pieces); 4 Eggs (Boiled and Chopped) With or Without Egg Yolk); 1 Onion (Finely Chopped); 1 Tomato (Finely Chopped); Half Green Bell Pepper (Finely Chopped); 2-3 Green Chillies (Finely Chopped); 2 tbsp Vegetable Mayonnaise; 2 tbsp Amul Cheese Spread (Plain); as required Salt to Taste; as per taste Black Pepper Powder; as required Oregano; as required Mexican Seasoning to Taste