Sardine cakes with spicy yogurt sauce

Name: Sardine cakes with spicy yogurt sauce
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Ingredients: 2 cans sardines packed in water ((or packed in olive oil)); 1/2 cup Greek yogurt ((preferably non fat)); 1/2 cup whole wheat panko breadcrumbs; 1/4 cup parsley (chopped); 1 tbsp Cajun spice mix ((Emeril Lagasse's essence)); 1 ea egg; 1 tsp lemon zest; 1 tbsp extra virgin olive oil (to spray); 1/2 cup Greek yogurt; 1 tsp Dijon mustard; 1 tbsp capers; 1/8 tsp cayenne pepper ((optional - or more to taste)); 2 tbsp lemon juice (fresh squeezed)