Baked Fish with Onions

READY IN: 1hr 10mins
Recipe by Geema

A rich and creamy onion sauce transforms simple cod into an impressive company dish. If you don't want to use any dairy products, omit making the cream sauce and just smother the cod with the slow cooked onions, the bread crumbs and drizzle with fragrant olive oil before baking.

Top Review by Nimz1466

Geema this was great. I added 2 cloves of garlic and used both the swiss and parmesan cheese. I did not have Cod so I used Tilapia fillets and it turned out great. I served this with a salad with GinnyP's Lemon-Garlic Oregano Dressing, Lan's Jack Stack's Smokestack Baked Beans and topped it off with Next Best Thing to Robert Redford. Thanks so much, we really enjoyed this one.

Ingredients Nutrition


  1. Heat oil and 2 tablespoon of the butter and cook onions over medium heat until soft and golden, stirring often-- about 15 minutes.
  2. Stir in the flour and cook for 2 minutes.
  3. Whisk in the milk, bring to a boil, reduce heat and simmer for 15 minutes.
  4. Add more milk if sauce is too thick.
  5. Season with salt and pepper.
  6. Spread one third of the onion sauce in a casserole and sprinkle with one third of the cheeses.
  7. Cover with the fish fillets, then sprinkle with one third of the cheese.
  8. Pour the remaining sauce over the fish and sprinkle with the remaining cheese.
  9. Top with the fresh bread crumbs and dot with small pats of butter.
  10. Bake in a preheated 400 degree oven for about 20 minutes until the casserole is bubbly.

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