Easy Mexican Casserole(Can Be Made Ahead Of Time)  
["1 (10 oz.) pkg. frozen spinach", "1 1/2 lb. lean ground beef", "1 medium onion, chopped", "1 (16 oz.) can tomatoes", "2 (10 3/4 oz. each) cans mushroom soup, undiluted", "1 (8 oz.) container dairy sour cream", "1 tsp. garlic salt", "12 corn tortillas", "1/2 c. butter, melted", "1 (4 oz.) can chopped green chilies", "2 1/2 c. (10 oz.) shredded Cheddar cheese"]
["Prepare 13 x 9 x 2-inch baking pan with Pam.", "Cook spinach according to package directions; drain well.", "Brown meat and onion in skillet.", "Drain off excess fat.", "Add tomatoes and cooked spinach.", "Combine soup, sour cream and garlic salt; set aside."]
["frozen spinach", "lean ground beef", "onion", "tomatoes", "mushroom soup", "sour cream", "garlic salt", "corn tortillas", "butter", "green chilies", "Cheddar cheese"]