There's a large modern Japanese-style restaurant that I've eaten at on the east side of Chiba station that would be in that price range and provide an interesting experience. The menu has pictures next to all the items so you have a guide to figuring out what you are ordering.

I can spot the building on Google maps (it's in 33-cho) if I enlarge the map enough but I can't figure out how to give precise directions although you can't miss it if you get nearby, it is a modern Japanese-style building with a blue roof and banners outside. This is the quiet side of Chiba station, not the one most exits dump you at.

Chiba station is a 30 minute and Y480 ride from Narita town on JR. If you're up for a bit of an adventure, this might be fun. Also the main side of Chiba station has a lot of little shops to look at.