the reason I wrote $8-60 is I have run across many, many travelers here who are eating for that amount! There are tons of places in the park, on front street, and tons spread throughout with big meals for under $3 us, some $4 big enough for two!
For breakfast today I spent $0.75 and had a heavy meal. I had a huge buritto and meat pie for lunch today and spent $2.25 us.
For dinner Chicken Lo Mein for $3 US. Last night Fry Chicken with Fried Rice $2.50 us.
That is why I mentioned it depends on what kind of food they like.
Do they like to dine out, do they like to dine fancy? Do they enjoy trying really local places along the way.
Valentine, please let us know what you are looking for, what 'right' means for you so we can assist.