In a large mixing bowl, combine the softened cream cheese, sour cream, garlic powder, onion powder, paprika, salt, and pepper. Mix until well blended.
Fold in the cooked chicken, steamed broccoli, and shredded cheddar cheese to the cream cheese mixture until evenly coated.
Transfer the mixture to a greased 9x13 inch baking dish, spreading it out evenly.
In a small bowl, combine the almond flour with olive oil. Mix until it resembles coarse crumbs. Sprinkle this mixture evenly over the casserole for added crunch.
Top with a little extra shredded cheddar cheese for a delightful cheesy crust.
Bake in the preheated oven for about 25-30 minutes, until the casserole is bubbling and the top is golden brown.
Remove from the oven and let it cool for a few minutes before serving.
Garnish with chopped green onions before serving for added freshness.