Bring a saucepan to a medium-high heat. Add 2 tablespoons of olive oil and swirl to coat the bottom of the pan.
Once olive oil is hot, add garlic and onion to sauté for about 2 minutes. Season with salt and pepper.
Add mushrooms and move around the hot pan. Allow them to cook and reduce, approximately 5 minutes.
Add the last tablespoon of olive oil, stirring to coat the ingredients, and then add the arrowroot powder. Stir to coat.
Slowly add the coconut milk and stir to combine. Then add the almond milk and vegetable broth; stirring consistently.
Add lemon juice and thyme and continue stirring.
Taste and add additional salt or pepper, as desired.
Stir in cauliflower rice and allow to cook 3-5 minutes (longer if desired).
Serve immediately.
Notes
Coconut Milk: be sure to fully combine the coconut milk before use. (to re-combine, pour coconut milk into a wide-mouth mason jar and use an immersion blender to blend).
Whole30/Paleo: just check the vegetable broth ingredients before use.
Storage: for best results, use immediately but leftover risotto can be stored in an airtight container for 3-4 days.