Hi Meg,
Me and my wife are just back from our sightseeing and leisure cycling tour south of Ålesund. We were looking more or less what you described, a loop with peaceful paved roads and beautiful surroundings. So here is what we would recommend based on our limited experience.
Ferry from Sula to Festoya – cycling to Indre Standal (amazing road) – ferries Standal to Trandal to Saebo to Lekneset OR cycling from Indre Standal to Brautaset to Saebo (amazing climb and descent) – cycling from Urke to direction Stryn (beautiful first 30 km) – now you can turn 10 km before Stryn to road 613, OR, if you have time, we recommend to take detours through Stryn to lakes Oldevatnet and/or Lovatnet (amazing rides along the shores) and back – road 613 to Lote – ferry to Anda – Anda to Sandane to Hyen to Florö – from Florö along Eurovelo 1 to Ålesund.
We are happy to give more info.
Wish you a great ride (and fair weather 😀)