Dined at Costa Do Sol Canterbury Road Petersham for a Birthday of someone who had just returned from Portugal. Un-presuming, this small and comfortable restaurant provides huge, beautifully cooked servings across a range of seafood and meats with salad. The platters for 2, more than adequate for 3. We had a seafood platter with mouthwatering large prawns, squid, octopus mussels and baby clams; - also lamb, rice potatoes and salad - all fresh and tender. Service was welcoming and the bill very reasonable. Birthday boy wowed by the authenticity. Definitely worth a visit.