In a skillet on the stovetop, sauté the diced onions in the vegetable broth (or saved tomato water) until translucent, about 2-3 minutes.
Add in the garlic, and cook for 1-2 minutes.
Sprinkle the taco seasoning over the onion & garlic; stir to combine.
Add in the sun-dried tomatoes, and cook for another 1-2 minutes. Add additional broth or water, as needed.
Add in the crumbled walnut, nutritional yeast, Worcestershire sauce, and lime juice; stir to combine.
Cook for another 5-10 minutes, adding additional broth or water, as needed,
Take off the stove & serve in tacos shells or in a bowl with beans & rice. Some topping options are: vegan cheese shreds, lettuce, guacamole, rice, black beans, salsa, etc.
Store leftovers in airtight container in the refrigerator for up to 3-4 days, or up to 1 month in the freezer.