Brown the minced bacon in a casserole. Add the onion, green pepper and ground celery. Cook in the oven while you are preparing the other ingredients. Heat the cooked chicken or beef in a skillet with the butter. Stir the flour into this and add 2 cups of water, the bouillon cube, salt and the Chili powder. When it has thickened add the tomatoes. When hot add this to the casserole. Stir well. For the cornmeal mixture place 2 cups of water in a saucepan and add salt. When it boils sift into this, stirring constantly, the cornmeal. Cook until it is thick. Spread over the meat in the casserole. Cook in a slow oven (300° F.) for 40 minutes.