We ate many times at Cams during our stay in Santa Maria as it is both affordable and delicious.
There is a wide variety at breakfast with continental breakfasts, delicious (and enormous) crepes or local catchupas for very little money (around 3 or 4 euros).
At lunch and dinner we have had the dish of the day formula a few times and have eaten delicious tuna steaks or fish+squid skewers + drinks+ desserts for only 6 euros. We also ordered a la carte one evening and had the best meal of our holiday with some more delicious fish.
Their desserts are also very tasty (especially the Pudim de queso and cheesecake).
The service is also quick.