Preheat the oven to 350°.
Season the chicken well with salt, pepper, and onion powder. Set aside.
Stir together the other ingredients except the butter and cracker crumbs. Fold in the chicken. Taste and adjust seasoning if needed. Put in an 8X8 or similar-sized baking dish.
Toss together the melted butter and cracker crumbs. Sprinkle over the top of the chicken mixture. Bake for 30-35 minutes until hot and the the topping is browned.
Serve over rice or noodles.