Be careful while adding salt, since the canned tuna is already salty. You can substitute tuna with chicken also and follow the same procedure. I think you can use around 400 gms of boneless chicken for the above measurements. Boil the cleaned chicken with salt and pepper till it is cooked. Mince the boiled chicken and add to the masalas. I used cookie cutter for shaping the cutlets. I got 29 small- medium size cutlets and 4 medium size patties with the above qty. I didn't coat the patties with egg whites and breadcrumbs. Just froze it after shaping, in between layers of parchment paper. I don't defrost the patties before cooking. I shallow fry the patties.