Spinach Fantastic
["1 (6 oz.) pkg. long grain and wild rice mix", "2 (10 oz.) pkg. frozen chopped spinach, thawed", "2 c. (8 oz.) shredded Monterey Jack cheese", "1/4 c. margarine, melted", "1 Tbsp. chopped onion", "3/4 tsp. dry mustard", "1/2 tsp. salt"]
["Cook rice according to package.", "Press spinach between paper towels to remove excess water.", "Combine rice, spinach and remaining ingredients.", "Spoon into a lightly greased 2-quart shallow casserole.", "Bake, uncovered, at 350\u00b0 for 35 to 40 minutes. Yields 6 servings."]
["long grain", "shredded Monterey Jack cheese", "margarine", "onion", "dry mustard", "salt"]