Well, most people aren't Miya Osamu and have all food as their favorite food. Because he is Miya Osamu, and he calls it professional curiosity, he often goes out of his way to try new things as long as they seem appealing. He wasn't ready to try frogs, for example.

He walked over, put his order in, and then turned to Hanamaki, "I'm buying," he said. "So feel free to get anything."