Blend all the ingredients listed for the avocado dressing in a blender: avocado, yogurt, green onions, jalapeño, garlic, sour cream, cilantro, lemon juice, salt and pepper. Blend until combined and creamy.
Pour dressing into bottom of Mason jars. The amount of jars you will fill depends on how much dressing you want in your mason jar salad.
Place vegetables on top of avocado dressing in the order listed: cauliflower, chicken, black beans, tomatoes, spiralized zucchini. Place lid on top and refrigerate until ready to eat. Can eat straight from the jar or dump out into a bowl. Enjoy!