5 (10-ounce) packages frozen chopped spinach 4-1/2 cups milk 1 teaspoon dry mustard 1 teaspoon granulated garlic 1-3/4 teaspoon crushed red pepper 1/2 medium yellow onion 1 Tablespoon butter 5 Tablespoons melted butter 6 Tablespoons flour 8 ounces Velveeta 8 Read More …