[ Katsudon? Ah! That's not too expensive. Though Ayaka lives in a completely different world, where she bothers not too much with what comes out of her wallet. ]

Perhaps that may be a better choice. It's warm, and will likely satisfy your hunger. And you needn't pay with your family to be able to eat their food. I'm sure it's not that expensive.

[ She's the one who takes the lead now, approaching the katsudon stall with a small smile on her face so she can order a serving for this stranger! ]