To serve 2-4;

1 semi soft green plantain; peeled, halved and cut lengthwise
1/2 cup of chopped mangoes
1/2 chopped firm avocado
1 medium tomato chopped
1 medium white onion chopped fine
2 Tbsp fresh cilantro chopped
Juice of 1 lemon
Salt and black pepper to taste

Grill the plantain on a greased hot grill plan for 4-5 min on each side. Cool completely and chop into chunks. Mix with the rest of the above. Check for seasonings. Let the flavors marry for atleast 30 min the fridge or on the counter top before serving.