personally myself i wouldn't freeze raw soups, nuts i'm not sure, hummus i wouldn't but almond milk you can i think because in raw food real world i remember reading about places selling frozen nut milks. i freeze fruit for smoothies often but i wouldn't thaw it and use it like it was fresh. anything with high water content will usually burst eg greens. i'm sure somebody will be able to answer your questions more fully soon. as a rule of thumb though fresh is best, freezing can somewhat deactivate enzymes.

By cells freezing I imagine he does mean exactly that. Like if you freeze a strawberry the water expands and breaks the cell wall. That's why when defrosted the strawberry is soft and you have strawberry juice leaking out! That same cell wall would break during digestion so our bodies can pull nutrients from the food.

I've known many people that make up raw pizzas and main courses even ahead of time and freeze them. Piers and I keep extra nuts and seeds in the freezer, and do buy frozen berries... that's about it though. We tend to make things as we need them. I love the idea of having things ready for moments when that's not possible though... I've just never organized myself to make that happen.

Our 'fast food' is usually fruit, veggies sticks in tahini, and handful of goji berries or something similar!