Heat oven to 375
Pour avocado oil into a gallon baggie. Place cauliflower into the bag and shake until coated.
Add salt, pepper and garlic powder into the baggie and shake well.
Pour cauliflower onto a lined baking sheet.
Bake for 25-30 min or until cauliflower is fork tender
Remove from oven.
While cauliflower is cooking, hard boil eggs.
Add onion, pickle and celery into a medium bowl. Then add cauliflower.
Dice hard boiled eggs and add to bowl.
Add remaining ingredients to the bowl and mix until well combined.
Refrigerate for at least an hour.