For an easy and healthy weeknight dinner, make baked cod by roasting fresh fillets with parmesan cheese and a simple lemon garlic butter sauce -- the cod becomes tender and flaky, infused with citrus and cheesy flavors. For convenience, only a single pan is needed for both baking the fish and making the sauce. Serve this oven baked cod alongside keto, low carb, and gluten free sides such as spinach or asparagus recipes.