Easy Cheese Enchiladas
["1 onion", "1 to 1 1/2 lb. ground beef (optional chicken)", "grated cheese", "flour tortillas", "1/2 c. margarine", "3 Tbsp. flour", "2 c. milk", "8 oz. Velveeta", "1 can green chilies"]
["Saute onion.", "Add ground beef and brown; drain.", "Place some ground beef and cheese in a line in the center of a flour tortilla.", "Roll and place seam side down in a baking dish.", "Place rolled enchiladas side by side.", "Pour sauce over.", "Add grated cheese on top.", "Bake, uncovered, 15 to 30 minutes at 350\u00b0 (until bubbly)."]
["onion", "ground beef", "grated cheese", "flour tortillas", "margarine", "flour", "milk", "Velveeta", "green chilies"]