Preheat your oven to 425°F (220°C).
In a large bowl, combine the olive oil, lime juice, chili powder, cumin, garlic powder, salt, and pepper. Add the cauliflower florets and toss until they're well coated with the marinade.
Spread the marinated cauliflower florets on a baking sheet lined with parchment paper. Roast in the preheated oven for about 20-25 minutes, or until the cauliflower is tender and slightly crispy at the edges.
While the cauliflower is roasting, in a small bowl, combine the drained and rinsed pinto beans with smoked paprika, garlic powder, onion powder, cayenne, and coconut aminos or soy sauce. Stir to coat the beans with the seasonings.
In a small saucepan, warm the seasoned pinto beans over medium heat until heated through.
Warm the tortillas according to the package instructions. To assemble each taco, place a generous scoop of roasted cauliflower on a tortilla. Top with seasoned pinto beans, avocado slices, and chopped cilantro.
Squeeze fresh lime juice over the taco fillings and fold the tortillas. Serve the Vegan Chili Lime Cauliflower Tacos with extra lime wedges on the side.