Preheat the oven to 375°F. Spray a baking dish with cooking spray and set aside.
In a high-speed blender, combine the soaked cashews, almond milk (or yogurt), nutritional yeast, garlic, lemon, and hot sauce. Blend until all the ingredients are well combined, smooth and creamy, about 1-2 minutes.
Transfer the creamy sauce to a large bowl. Add the thawed spinach, chopped artichokes to the bowl and stir to combine. In a large bowl, combine spinach, artichokes and sauce and stir to combine. Transfer this mixture to the baking dish and bake on the center rack for 20-25 minutes, until dip is bubbling and mostly set.
Remove and serve immediately with your choice of crackers, chopped veggies or toast!