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Keto Dinner

Mushroom, Cheese, and Haddock Bake

I love how this keto-friendly haddock bake combines earthy mushrooms, gooey cheese, and flaky fish in one dish. It’s a simple weeknight dinner that feels special without the fuss.

15 min Prep time 30 min Cook time 45 min Total time 4 Servings 380 Calories
Mushroom, Cheese, and Haddock Bake

Ingredients

  • tbsp olive oil
  • /2 bunch green onions, chopped
  • oz button mushrooms, chopped
  • lbs haddock fillets
  • salt and pepper to taste
  • tbsp garlic powder
  • /8 tsp dried red chile peppers
  • tbsp butter
  • /8 tsp dried parsley
  • /4 cup shredded Colby-Monterey Jack cheese
  • lemon wedges for garnish (optional)

Instructions

  1. Step 1

    First, preheat your oven to 350°F and lightly grease a 9x13 baking dish. Heat the olive oil in a skillet over medium-high heat, then sauté the chopped green onions and mushrooms until tender, about 5 minutes. While they cook, season the haddock fillets on both sides with salt, pepper, garlic powder, and dried chile peppers, then arrange them in the prepared dish. Top the fish with the warm mushroom mixture, dot with butter, and sprinkle with dried parsley. Cover the dish with foil and bake for 15 minutes. After that, remove the foil, scatter the shredded cheese evenly over the top, and return to the oven uncovered. Bake for another 15–20 minutes until the fish flakes easily with a fork and the cheese is melted and bubbly. Serve with lemon wedges for a bright finish, if desired.

Chef's Tip

I always pat the haddock dry before seasoning—it helps the butter and cheese form a richer crust. For extra indulgence, stir a tablespoon of cream cheese into the mushroom sauté.

Storage Tips

Store leftovers in an airtight container in the fridge for up to 3 days. Reheat gently in the oven at 300°F to keep the fish moist and the cheese gooey.

Variation Tips

Swap haddock for cod or salmon to change the flavor. Toss a handful of fresh spinach into the mushroom mixture for added greens and a pop of color.

Frequently Asked Questions