Classic Canadian Dish: Cod Au Gratin - Canadian Food Focus

Ingredients

• 1 1/2 lbs cod fillets ((deboned and skinned))
• pinch salt
• 1 Tbsp canola oil
• 1 yellow onion (peeled and diced)
• 3 Tbsp butter plus 2 Tbsp for crispy breadcrumb topping
• 3 Tbsp flour
• 2 cups milk
• 1/2 tsp salt
• 1 Tbsp lemon zest
• 1/2 tsp freshly ground black pepper (plus more for topping)
• 1 tsp dried oregano
• 1 cup breadcrumbs
• 1 cup Parmesan cheese (grated)
• 2 cups cheddar cheese (grated)