In a small bowl, whisk up the tahini, water, lime juice, maple syrup, chili powder, garlic powder and salt. Or, you can blend it with an immersion blender in a wide mouthed blending cup. Set aside.
Prep any salad ingredients: shred cabbage, slice veggies, crush chips. Set aside.
In a large skillet over medium heat, warm the lentils, walnuts and corn with oil until heated through, about 2-3 minutes. Add the water, taco seasoning and tomato paste and cook, stirring occasionally until the water is absorbed, about 2-3 minutes more.
Assemble your salads: place greens in bowls, add lentil-walnut taco meat and toppings and drizzle with dressing.
