Generally I don’t like to advocate canned foods of any type. However, if you’re using a small amount of the puree and receiving no reaction from it, I suppose using it once or twice a week woudn’t be too harmful, hopefully.
Nuts should be left out of the detox period and for as long as possible afterwards.
I believe I addressed your yogurt question on your other post:
“After about three weeks from starting the detox/diet, and depending on how you’re doing at the time, you could try testing organic non-sweetened Greek yogurt.”