In a large pan over high heat, add coconut oil. Once hot, add garlic and onion and sauté for 1 minute, stirring frequently. Add cauliflower rice and stir to coat. Place the lid on to steam the rice for about 1 minute, then remove from heat and transfer a large mixing bowl.
Add remaining ingredients to the cauliflower rice and mix to thoroughly combine.
Generously stuff halved peppers with the mixture until all peppers are full. Cover the dish with foil and bake at 375 degrees for 15 minutes, covered.
Serve as is or add your desired toppings - we love avocado and lime for sure!