Mushrooms are a great source of protein and taste great too. I love a good beef burger once in a while but it seems to make my arthritis act up so I now limit beef and find that mushrooms make a Great and tasty replacement.
Saute the mushrooms, onions and garlic over medium heat for about 10 minutes in a small amount of oil. Continue cooking until the liquid released from the vegetables reduces and the mushrooms are soft.
In a large bowl, add mushroom mixture to oats, nutritional yeast, breadcrumbs, parsley, oregano, salt, pepper and thoroughly mix well with clean hands or a spoon.
Form patties with clean hands. In a large non-stick skillet, heat 2 tablespoons of oil, over medium heat. Cook patties for 5 minutes on each side, or until golden brown and cooked through. Turn down heat or place in a 350F (180C) oven to finish if longer cooking is required to cook through.
To make the spicy mayo, combine all ingredients in a bowl and mix well.
Serve on wheat buns with baby arugula,tomato and red onion toppings with spicy mayo.
*nutritional yeast Equivalents: 1 tablespoon powdered = 2 tablespoons flakes Notes: This nutritional supplement has a pleasant nutty-cheesy flavor and is packed with protein and B vitamins. It comes in flakes or powder and is popular with vegans and health buffs who use it to make cheese substitutes, gravies, and many other dishes. It's also a great topping for popcorn. Nutritional yeast is very similar to brewer's yeast, which is also used as a nutritional supplement and is made from the same strain of yeast. The difference is that brewer's yeast is a by-product of beer production and retains some of the bitter flavor of hops. Don't confuse nutritional yeast, which is deactivated, with active forms of yeast, like the kinds bakers, brewers, and winemakers use. If you eat them, active yeasts will continue to grow in your intestine, robbing your body of valuable nutrients. Look for nutritional yeast at health food stores. Get fortified nutritional yeast if you're taking it as a source of vitamin B12. **Substitutes: brewer's yeast (inferior flavor, darker color) OR Parmesan cheese (as a condiment; higher in fat, less nutritious) OR wheat germ (works well in baked goods or sprinkled on cereals) OR yeast extract