I grabbed some sweet apples that were on sale at the supermarket, decided to buy some other veggies as well and turned on my trusty food-dehydrator. I tried to slice everything to about the same thickness of about 4-5 mm, as I expected that all ingredients would take roughly the same time to dry.
The groceries I used (apples, button mushrooms and chili peppers) are rather moist material so the drying time was a little longer. It was about 5 hours at about 55°C (131°F) for the shroomz and indeed 7 hours for the apples and chilies. Everything turned out fine.