Manvell Farm has a lovely little café with outdoor picnic tables, based in a fishing lakes facility. It's tucked away, but the cake selection is usually well worth hunting it out!
This route heads South West via Thornby and Brixworth, where there are other café options available at the Buddhist Centre and the Workhouse respectively.
Here's the Strava link.
Here are some routes that we regularly use for club runs. Use the Categories to limit the routes you see. The compass points relate to where the ride goes from the clubhouse. Routes can be downloaded for your cycle computer, either directly as a GPX or via Strava for TCX.