Preheat oven to 350 degrees F (175 degrees C). Grease a baking sheet.
Place mushrooms, quinoa, lentils, onion, and garlic in a food processor or blender; pulse until coarsely combined.
Sprinkle nutritional yeast, almond meal, flax seeds, Worcestershire sauce, sage, oregano, basil, rosemary, thyme, mint, and cayenne pepper into the food processor. Blend until mixture is combined but still slightly choppy.
Shape mixture into balls and arrange on the baking sheet.
Bake in the preheated oven until darkened and slightly crispy on the outside but moist on the inside, about 15 minutes.