Preheat your oven to 450°F (230°C) and line a baking sheet with parchment paper.
In a large mixing bowl, combine the flour, garlic powder, onion powder, smoked paprika, salt, and pepper. Whisk to combine.
Gradually add the almond milk to the flour mixture, stirring until you have a smooth batter.
Dip each cauliflower floret into the batter, allowing excess to drip off, and then place them on the prepared baking sheet. Make sure they’re spaced apart for even cooking.
Bake in the preheated oven for about 20-25 minutes, flipping halfway through until golden brown and crispy.
Remove the cauliflower from the oven and toss it in the buffalo sauce, ensuring each piece is thoroughly coated.
Return the sauced cauliflower to the oven and bake for an additional 10 minutes to set the sauce.
While the cauliflower is baking, warm the corn tortillas in a skillet over medium heat for a minute on each side until pliable.
To assemble the tacos, place a generous amount of buffalo cauliflower in each tortilla, and top with shredded lettuce, avocado slices, and a drizzle of vegan ranch dressing.