In a large bowl, mix together your fire roasted tomatoes, red onion, black beans, black eyed peas, corn, bell pepper, jalapeno, and cilantro.
Starting with ¼ cup, pour your Italian Dressing of choice into the large bowl. Give it a mix. If desired, add up to another ¼ cup. The amount of dressing you use here completely depends on personal preference and how saucy you want your Cowboy Caviar! I tend to use around ⅓ cup.
Give your Cowboy Caviar a taste and add the optional garlic salt, if desired. This will largely depend on what Italian Dressing you used - if the dressing was already somewhat salty, you might want to skip this part. But if you want a little extra flavor boost, then add it in!
You can absolutely eat this right away if you'd like, but I highly recommend refrigerating it for a couple hours before consuming. After a few hours in the fridge the flavors get even better! Enjoy!