To make the cauliflower rice, add the florets to a food processor in two batches and pulse a few times, or until a coarse rice/couscous texture forms.
Transfer to a skillet over medium heat and sauté for 3 minutes, stirring often, just to soften the cauliflower. Alternatively, place the cauliflower rice in a microwavable bowl, cover with a towel, and microwave for 1 minute. Spread the cauliflower around in a thin layer in the bowl so it can cool quickly. Place in the fridge to cool for 10-20 minutes.
Once cool, add the blueberries, onions, herbs, almonds, olive oil, lemon juice and salt and toss to combine.
Serve topped with more pickled red onions. Enjoy!