To prepare a spinach dumplings baked goods recipe, you will first need to prepare your ingredients. You will need: 1 1/2 cups shredded spinach, 2 tablespoons melted butter, 1 teaspoon kosher salt, 1/2 teaspoon ground black pepper, and 1 tablespoon sour cream. Preheat the oven to 375 degrees F (190 degrees C) and grease two 9-inch square baking pans with non-stick cooking spray. Mix the flour, baking powder, salt and nutmeg together. Add the wet ingredients to the dry ingredients and stir to combine. Pour the mixture into the greased and floured baking sheets and bake for 20 to 25 minutes or until the bottoms are golden brown.