Pre-heat your oven to 400 degrees
Pat your cod fillets dry with a paper towel and season with salt and pepper on all sides. Use very little salt because the potato chips will have salt as well
Spread 1 teaspoon of Greek yogurt on the top and sides of each fish fillet, leaving the bottom uncoated
crush the potato chips into crumbs about 1/8 inch in size
Press the coated part of each cod fillet into the potato chip crumbs again leaving the bottom bare
Pour oil into your oven proof skillet and heat over medium high heat
Put fish fillets bare, uncoated side down into the hot skillet and put the pan into the hot oven
Cook the fish 6-8 minutes or until cooked through, depending on the thickness of the fish