Spinach-Potato Casserole
["6 to 8 large potatoes, peeled, cooked and mashed", "1 c. (8 oz.) sour cream", "1/4 tsp. pepper", "2 tsp. salt", "2 Tbsp. chopped green onion tops", "1/4 c. margarine or butter", "1 pkg. frozen chopped spinach, thawed and well-drained", "1 c. shredded Cheddar cheese"]
["In a large bowl, combine all ingredients except cheese.", "Spoon into a greased 2-quart casserole.", "Bake, uncovered, at 400\u00b0 for 15 minutes.", "Top with cheese and bake 5 minutes longer.", "Makes 6 to 8 servings.", "Easy to double."]
["potatoes", "sour cream", "pepper", "salt", "green onion", "margarine", "spinach", "Cheddar cheese"]