The trio of walnuts, tempeh, and mushrooms is a nutrient-dense and meaty-tasting substitute for meat in these plant-strong tacos. The mixture mimics the texture of ground meat quite nicely. If using smaller street-style corn tortillas, a more appropriate serving size might be three tacos. You are welcome to add a dollop of sour cream or a dairy-free alternative.
Higher intakes of plant-based protein have been linked to improved brain functioning, making using meaty tempeh for taco night worth thinking about. People who ate avocado daily for six months saw a big boost in working memory and problem-solving efficiency, a study in the journal <Nutrients> found—a benefit attributed to the high levels of the antioxidant lutein in the creamy fruit. People who frequently eat mushrooms and walnuts have been found to have lower rates of depression. And eating nutrient-dense nuts, in general, has been tied to improved cognitive functioning.
Hold the tortillas and serve the nutty mixture and avocado salsa over baby greens for a taco salad. You could also finish with baked tortilla chips and shredded cheddar cheese, or crumble queso fresco overtop.