In a food processor fitted with an S-blade, pulse onion, bell pepper and one jalapeno to a large chunky stage. Do not over pulse at this stage.
Add tomatoes, lime juice, cilantro, salt and 1 clove of garlice to the food processor bowl, and pulse to a chunky stage. Stop and taste. Adjust onion, garlic, jalapeno, salt and cilantro by adding more to your desired tastes.
Pulse a few more time, being careful not to puree, unless you wish a very smooth sauce consistency.
Chill for 2-4 hours before servine to allow flavors to blend.