Preheat oven to 375º F. Cover baking sheet with parchment paper.
Cauliflower-Walnut Crumble Option
Break cauliflower into medium florets.
Place cauliflower florets, walnuts, taco seasoning mix (homemade taco seasoning recipe) and garlic clove into the bowl of a food processor - pulse until coarsely ground - don't over process. I leave a few chunks in my crumble.
Tip the crumble onto a prepared baking sheet and place in oven. Cook for 15 minutes stirring half way through.
While the cauliflower crumble is baking, combine the taco sauce ingredients in a large bowl (oregano, salsa, tomato paste, chipotle sauce, ¼ cup water/broth).
At the 15 minute mark, pour the sauce over the crumbles and stir to incorporate. Spread crumble evenly and put back in the oven for 8-10 minutes until a bit crispy. Remove from oven.
Tofu Crumble Option
Heat 1 tbsp of oil over medium-high heat until shimmery. Crumble a block of extra firm tofu into the skillet.
Add 2-3 tbsp taco seasoning, garlic powder, oregano, salsa, tomato paste, ¼ cup of water or broth then fry over medium to high heat for 5 - 8 minutes.
Add up to ¼ a cup more water or broth (if needed) and the chipotle tabasco then simmer over medium-low until evaporated. Remove from heat.
Firecracker Dilly Drizzle
In a small mixing bowl, whisk together the ingredients for the drizzle starting at vegenaise up to and including dill.
Add more or less hot pepper flakes (or skip) depending on how HOT you want the drizzle.
Toppings
Chop and prepare lettuce, tomatoes, and avocado.
Assembling the Tacos
Warm hard taco shells.
Fill with taco crumbles (cauliflower-walnut OR tofu), chopped tomatoes, avocado chunks, shredded lettuce, and jalapeño pepper rings.
Drizzle with firecracker dilly drizzle.
Notes
CAULIFLOWER-WALNUT CRUMBLE: Don't over process the cauliflower and walnuts. Leave some texture. Pulse a few times to achieve a coarse grind.Add any spice mixture you prefer. I make my own taco seasoning but you can easily swap for your favourite store-bought brand or any seasoning your family prefers.TOFU CRUMBLE OPTION: The tofu option is a bit less fuss and an easy, delicious option. Everything cooks in one pan on the stove while you are chopping your taco toppings.STORAGE: Both crumbles store well in the refrigerator for 3 or 4 days and are delicious warmed as leftovers. Try the crumbles in a baked potato bar, a buddha bowl or as a pizza topping.