In a small frying pan, heat the Olive Oil. Once heated, add the onions and peppers. Lightly salt and pepper. Cook until the onions are translucent. Remove from heat and let cool.
Make sure the jackfruit is thoroughly rinsed. Break it apart with a fork or your hands to get a stringy texture.
Add the mayo, lemon juice, cajun spices, parsley and kosher salt. Mix evenly.
Once the onions and peppers have cooled down, add those to the mix along with the capers.
Add half a cup of breadcrumbs. Mould into approximately 4 patties. If the mixture is still very loose, add more breadcrumbs.
Once the patties have been moulded, coat them in the remaining breadcrumbs.
You may choose to either bake or pan-fry.
If you bake - preheat the oven to 425 degrees Fahrenheit. Use cooking spray to coat the pan evenly and evenly coat the patties. Cook for approximately 10 minutes.
If you fry - use vegetable oil. Cook over medium-low heat. Be careful not to turn them too often; the patties will become very fragile and may fall apart.
For the tartar sauce, evenly mix all ingredients and refrigerate.