1. Heat oil in a pan. Add mushrooms and fry on high heat until it’s light golden. Add salt and pepper as per taste and fry for 1 min again. Turn off heat and add DelMonte’s Achari Mayo. Mix them until well coated.
2. Toast slices of bread in olive oil. Transfer to a plate and start building the sandwich.
3. To the base bread  slice  - layer with lettuce, cheese slice,  tomatoes and onion. Sprinkle salt & pepper. Add the achari mushrooms. Top with some more achari mayo and then add the black olives. Cover with the top bread slice.
4. Serve immediately to avoid bread becoming soggy.

Enjoy your meal!