The patties come together in minutes thanks to the food processor. Cremini mushrooms, often called baby bellas, are what give the burgers their meaty texture and earthy flavor—opt for these over milder button mushrooms. Ground flaxseeds add body and texture to these burgers. The cool and creamy yogurt and avocado mixture is a great go-to spread; slather it inside pita pockets or on your morning toast. Double the patties and freeze, uncooked, for up to 1 month.
How to Make It
Place flaxseed, Worcestershire sauce, 1/4 teaspoon kosher salt, cumin, pepper, mushrooms, half of the beans, egg, and garlic in a food processor; process 1 minute or until almost smooth. Place bean mixture in a bowl; stir in remaining half of beans and panko.
Heat oil in a large cast-iron or nonstick skillet over medium-high. Fill a 1/2-cup measure with bean mixture; add to pan. Repeat procedure 3 times to form 4 patties. Flatten patties slightly with the back of a spatula. Cook 2 to 3 minutes on each side or until browned.
Combine remaining 1/4 teaspoon salt, juice, and avocado in a bowl, mashing with a fork. Stir in yogurt and 1 tablespoon water. Divide patties among bottom halves of buns; top evenly with avocado mixture, cabbage, and top halves of buns.