Beef Chili Rellenos Casserole
["1 lb. ground beef", "1/2 c. chopped onion", "1 1/2 c. milk", "1/4 c. flour", "2 (4 oz.) cans whole green chilies", "1 1/2 c. shredded cheese (Longhorn or Cheddar)", "1 tsp. salt", "1/4 tsp. pepper", "4 eggs, well beaten"]
["Brown beef and onion; drain off fat. Salt and pepper meat. Cut chilies in half lengthwise; remove seeds. Arrange half of the chilies in 10 x 6 x 1 1/2-inch baking dish. Sprinkle with cheese and top with meat mixture. Lay remaining chilies over meat. Beat eggs, milk and flour together until smooth; pour over chilies and meat mixture. Bake, uncovered, at 350\u00b0 for 40 to 45 minutes or until inserted knife comes out clean. Cool 5 minutes; cut into squares for serving. Serves 6 to 8."]
["ground beef", "onion", "milk", "flour", "green chilies", "shredded cheese", "salt", "pepper", "eggs"]