Preheat oven to 350 degrees F.
Heat a coconut oil greased skillet over medium heat. Add in cauliflower rice and apple cider vinegar, and sauté for 5 minutes to make the rice slightly "sticky." Place 3/4 of the rice in the bottom of a greased basking dish (I used a 10x7), and set aside the remaining 1/4 to top the casserole.
Whisk together the coconut milk, aminos, eggs, salt, pepper, garlic, and lime. Pour the sauce over the casserole, covering evenly.
Bake for 35-40 minutes, until egg mixture is set. Let cool for 15 minutes before serving to let the rice firm.
Freeze leftovers, or keep refrigerated for up to a week.