Slice the tomatoes sideways.
Finely dice the bell pepper.
Dice the remaining vegetables and the mango to a similar size.
Mix all the ingredients in a bowl. Adjust seasoning with salt and sugar.Cover and chill.
NOTE: The poblano chili is optional. Add more or less to your taste. I have a very low tolerance for chili and my recipes reflect that. This can be seasoned to your tastes.