Head to Shin-Miyoshi (New Miyoshi), established in 1999, to try everyone's favourite Nagano delicacy: horse meat. The first Miyoshi restaurant got going in 1899, and there are brilliant historical photos on the walls; the decor and furniture have been made to feel as if they're from older days. It's incredibly popular with locals. Try the basashi (horsemeat sashimi).
Shin-Miyoshi
Top choice in Matsumoto