Yes, falafel can be frozen before or after cooking. To freeze before cooking, arrange the falafel on a baking sheet, leaving space between each. Place baking sheet in the freezer and freeze for 1-2 hours, or until the falafel are frozen completely solid. Then, transfer the falafel to a freezer safe container or airtight bag and freeze for up to 3 months. Bake falafel from frozen until warm and crispy. To freeze after cooking, place the baked falafel in a container or freezer bag and freeze for up to 3 months.