This is so simple.Slice the tomatoes in half and remove seeds and pulp if desired. Cut the tomatoes into about ½" pieces (medium dice). Place the tomatoes into a medium-sized bowl.
Chop the onions and cilantro, and mince the jalapeno. Add to the tomatoes.
Squeeze the juice of one lime onto the tomatoes (if it's a really juicy lime, that might be enough, but sometimes the limes are small or a bit dry so add more to taste).
Season with coarse ground salt to taste. Taste and adjust lime and salt as desired.
Add a splash of Chipotle Tabasco sauce - this is optional but delicious.
Let the pico sit at room temperature for 20 - 30 minutes for flavour development.
Stir, taste, and adjust the seasonings once again. Enjoy!