Drain and rinse Kidney beans and Mushrooms. Chop Onion and Potatoes in to small pieces.

Heat a fry pan to Med-High temperature and add Olive oil. Fry Onion, Potatoes and Mushrooms until onion becomes slightly transparent. Remove from heat. Set-aside.

Using a food processor, chop Walnuts finely. Transfer to a medium mixing bowl. Do not wash the food processor.

Put Kidney beans and fried vegetables into the food processor; chop them finely.

Add Worcestershire Sauce, Red wine, Black pepper, Garlic powder, Cumin powder and Paprika powder to the wet mixture from Step 5. Mix thoroughly.

Transfer the wet mixture to the dry mixture from Step 4. Using spatula, fold the mixture over until well combined.

Let it rest for 45 minutes to hydrate the dry mixture, which makes for a better result.

Prepare large plates for hamburger patties.

This recipe makes 12 hamburgers, about a half inch thickness in size. Use a 1/3 measuring cup to form them (around 100 g each), then transfer to your hands with Olive oil and shape them into flat, round patties. Place formed hamburgers on plates.

Heat a fry pan to Med-High temperature and add Olive oil. Cook hamburgers about 3-5 min. Flip and cook another 3-5 min or until the bottom becomes crusty. Make sure it is cooked right through and no raw parts remain in the middle.

You can skip following steps if you prefer to use different condiments and/or non-baked finish.

Place a rack in middle of oven, and preheat oven to 350 ℉ (180 ℃).

Put cooked hamburgers into ovenware (lightly coated with cooking oil spray). Spread Apple Chutney on top of the hamburgers.