How To Make Charleston Spinach Hash Quiche - Best Recipe | Charleston Magazine

Ingredients

• 10-inch store-bought pie crust
• 1 (10 oz.) package frozen chopped spinach
• 1 egg
• 1 (10 3/4 oz.) can cream of celery soup, undiluted
• 4 oz. sliced or chopped mushrooms
• 2 Tbs. flour
• 1 1/2 Tbs. fresh horseradish
• 1 Tbs. Dijon mustard
• 1 (15 oz.) can corned beef or roast beef hash
• 1 1/4 cups sharp cheddar cheese, shredded
• 2-3 sprigs parsley