Traveling up to Porto and Duro Valley in March. Would love to get recommendations for dinner possibilities at a winery. We did this in Italy and it was amazing.
Quinta de la Rosa in Pinhão has a lovely restaurant with very good food and great views. It’s a pretty upscale Quinta so if you’re looking for a more rustic agritourismo type place like in Italy, it might not fit the bill. But, I’ve stayed there twice and eaten at the restaurant most of the time while there.
Another vote for Quinta de la Rosa. They make nice table wines in addition to Ports. We stayed 3 nights and had our breakfasts, 1 lunch and two dinners in their restaurant. It was the best food we ate in Portugal.