Heat a large skillet over medium-low heat and add some nonstick spray or add a bit of olive oil. When hot, add the onion and slowly sauté, seasoning with a pinch each salt and pepper.
When the onions are soft – about 5 minutes – turn up the heat to medium and add the mushrooms. Season with another pinch of salt and pepper and cook until the mushrooms and onions are slightly browned and fragrant – about 3 minutes.
If you don’t want to cook the whole batch at once, form into 10 thicker patties (as original recipe is written), par-bake them at 375 for 15-20 minutes. Then cool and stack between layers of parchment paper and cover. Freeze for up to a few weeks. To cook, bake as instructed until desired texture/color is reached.
Makes ~10 medium baked patties or ~16 thin sautéed patties (as original recipe is written)
*Inspiration gleaned from the talented Love and Lemons
*Nutrition information is a rough estimate calculated without toppings.