Preparation / Directions:
Brown beef and onion; drain. Sprinkle meat with 1/4 tsp salt and a dash of pepper. Split chiles lengthwise and remove seeds; spread open. Lay half of the chiles on the bottom of a shallow 1 qt baking dish. Sprinkle with cheese and top with meat mixture. Arrange remaining chiles over the meat. Gradually add milk to the flour, stirring until smooth. Add salt, pepper, eggs and hot pepper sauce. Beat until smooth. Pour over the casserole. Bake at 350 degrees for 45 to 50 minutes (knife inserted just off the center comes out clean). Pour off excess fat and cool 5 minutes before serving.