Put a pot of salted water to boil over medium-high heat and preheat oven to 375 degrees.
Break cauliflower florets into bite-sized pieces (these are your “noodles”) and cook in boiling water 3 minutes. Drain and set aside.
Drain cashews from soaking water and place in bowl of food processor. Process with shallot, nutritional yeast, ghee, tomato paste, mustard, lemon juice, and apple cider vinegar. Process until smooth. Add in turmeric, garlic powder, onion powder, and cayenne, along with salt and pepper and process until completely homogenous and smooth. If need be, dilute with a bit of filtered water or coconut milk to achieve the consistency of a creamy sauce. Toss sauce with cauliflower and place in a cast iron skillet.
For the topping, cook the bacon in a skillet over medium-high heat until fairly crispy and toss with pine nuts, hazelnuts, and garlic. Sprinkle over top of cauliflower mixture and roast in oven 5 to 10 minutes to warm through.