To Make The Taco Meat:
Add the oil to a large skillet over medium-high heat. Add in the lentils and seasonings. Sauté until the lentils are warmed through and the spices are fragrant.
For The Dressing:
Add the cashews, water, ketchup, vinegar, salt, and pepper into a high-speed blender. Blend until smooth. Pour into a bowl and stir in the pickle relish and onion.
To Serve:
Form an assembly line with the lettuce, lentil taco meat, beans, toppings, tortilla chips, and dressing. Let everyone build their own bowl and enjoy!