No-Bake Banana Oat Protein Bars with Walnuts

• 1 cupwalnuts — or peanuts or pecans or cashews
• 1½ cupsold fashioned oats
• ⅓ cupplant based vanilla protein powder
• ¼ cupcoconut flour — or ground flax
• ¼ cuphemp seeds
• 1 tspcinnamon
• ¼ tspfine sea salt — heaping
• 1 cupmashed overripe banana — medium, 2
• 2 tbsphoney — optional
• 1 tspvanilla extract

Optional topping

• 2 tbspchocolate chips
• ½ tspcoconut oil