Preheat the oven to 400°F with the rack in the middle position. Prep the ingredients as the oven heats up.
In a large bowl, combine the curry paste, coconut milk, fish sauce, coconut aminos, and kosher salt. Whisk well.
Add the sliced chicken, and the onion, carrots, broccoli, and bell pepper. Toss well.
Transfer the contents to a 9-inch by 13-inch casserole or baking dish. Cover tightly with foil and shove it in the oven.
Bake for 35 to 40 minutes or until cooked through and bubbly. Stir in the lime juice and herbs, and serve immediately. This Thai Chicken Curry Casserole pairs perfectly with Simple Cauliflower Rice!