You love a substitution so I will make some suggestions, but please do NOT substitute the gochujang paste. It is not up for discussion. You will just not get the flavour that I have been talking about. Here’s some other suggestions: Change up the veggies - use what you have. I’d suggest trying crunchy vegetables, such as shaved carrot, tenderstem broccoli or some zucchini, as they only get stir fried for a short time, they will still have a nice bite. Change up the protein - we love this dish with salmon as it works so well, but if you are not fond of it, you can switch it to shrimp, chicken or tofu if you want to make it solely plant based. (If you want to ensure this dish is vegan, just check the ingredients on your Gochujang paste to ensure its suitable as brands vary on ingredients.)  Change up the pickle - So, I suggest keeping the liquid pickle mix the same, but you can change up the veg you pickle. Try some matchstick carrots or some radish. Just ensure they are sliced thinly on a mandolin or with decent knife work you should be ok.