food in BEFORE you go for the blackberries, hard fruit, fish and mushrooms.

So, it's:
1. Drop adult villager on fresh water pots near stream obstruction area
2. Drop adult villager on rocks near bridge, he/she will put rock on fire

(Steps 3 and 4 can be done in any order or simultaneously)
3. Drop adult villager(s) on yellow, white and orange/red herbs. They will bring them to the table near pot.
4. Drop adult villager on hot rock from fire (after it's turned red)

(Steps 5 and 6 must be done in order)
5. Drop adult villager on table with herbs so he/she will “cook”
6. Drop adult villager on food bin to get “something nutritious”

(Steps 7-10 can be done in any order or simultaneously)
7. Drop adult villager on blackberry bush
8. Drop adult villager on fishing pier
9. Drop adult villager under hard fruit tree
10. Drop child villager on mushroom

You can put the berries/fish/mushroom in before the food from the bin.