Västerås has a solid restaurant scene for a Swedish city of its size. The harbour district has the most concentration of options, with a mix of Swedish and international kitchens. The old town also has a handful of reliable spots.
Swedish classics — meatballs, elk, herring, and the ritual cinnamon bun — are all available, but the city has enough international influence through its university and ABB workforce to support Thai, Afghan, and Italian cooking of decent quality.