Evelyn'S Ham Biscuits
["1/4 lb. butter (room temperature)", "2 tsp. prepared mustard", "2 Tbsp. poppy seed", "2 tsp. Worcestershire sauce", "1 small onion, grated", "1 pkg. (20 or 24) party rolls", "1 (4 or 5 oz.) pkg. sliced cooked ham", "1 (4 oz.) pkg. sliced Swiss cheese"]
["Mix together butter, mustard, poppy seed, Worcestershire and onion.", "Use tiny, day-old party rolls.", "Open them and spread mixture on both sides of roll; top each half with a small piece of ham.", "Put small piece of Swiss cheese between halves before closing.", "Heat in 350\u00b0 oven until cheese is melted.", "Makes 20 to 24 tiny sandwiches."]
["butter", "mustard", "poppy seed", "Worcestershire sauce", "onion", "party rolls", "Swiss cheese"]