Divide ingredients, in the order listed, between the two mason jars. Add in as much romaine lettuce as you can to the top of the jar. (See notes below.)
Cover and refrigerate up to 3-4 days.
When ready to eat, empty the salad out of the mason jar onto your plate or bowl, add any extra desired toppings and enjoy!
Notes
It may be difficult to get enough lettuce in your jar. I like to pack up a baggie or small container with extra lettuce to go with my jar.