Frosted Deviled Ham
["2 (4 1/2 oz.) cans deviled ham", "1 Tbsp. grated onion", "1 (8 oz.) pkg. cream cheese", "1/4 c. sour cream", "2 1/2 tsp. prepared mustard"]
["Mix deviled ham and onion.", "Mound mixture on plate.", "Mix remaining ingredients.", "Frost ham mound with cream cheese mixture. Refrigerate overnight."]
["ham", "onion", "cream cheese", "sour cream", "mustard"]