Preheat Oven:
Set oven to 375°F (190°C).Cook Cauliflower Rice:
In a large skillet, warm olive oil over medium heat. Cook cauliflower rice for 5-7 minutes until soft.Mix Casserole Base:
In a bowl, mix shredded chicken, cooked cauliflower rice, cream cheese or Greek yogurt, half the cheddar, garlic powder, onion powder, paprika, salt, and black pepper. Stir thoroughly.Sauté Optional Veggies:
If adding optional vegetables, sauté them for a short time and incorporate into the mixture.Assemble in Dish:
Coat a baking dish with olive oil. Evenly distribute the mixture and sprinkle remaining cheese on top.Bake Until Bubbling:
Bake 20-25 minutes until the cheese is melted and bubbling. Allow to cool briefly before serving.