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A fish pie with some scooped out with spoon and some fish on a table
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Fish Casserole

This simple dish can be made ahead of time and is beyond very easy to whip up into the most creamy, filling and decadent homemade Fish Casserole.
Course Main Course
Cuisine American, Western
Diet Gluten Free
Prep Time 5 minutes
Cook Time 40 minutes
Total Time 45 minutes
Servings 6
Calories 287kcal

Ingredients

  • 2 pounds (1kg) potatoes, peeled and cut chunks
  • 4 tablespoons dairy-free butter divided
  • 2 cups (500ml) plant-based milk use ¼ cup for mashed potatoes; 1 ¾ cups for casserole.
  • 2 teaspoons olive oil
  • 2 green onions finely sliced
  • 4 teaspoons (20g) cornstarch
  • 1 teaspoon Dijon mustard
  • ½ teaspoon ground nutmeg
  • 4 anchovy fillets finely chopped
  • 1 ½ cups (400g) fish pie mix
  • 2 ½ cups (75g) baby spinach roughly chopped
  • ½ cup (75g) frozen peas

Instructions

  • Preheat the oven to 400 degrees F / 200 degrees C.
  • Add the potatoes into some salted boiling water, bring back to the boil, reduce to a simmer cook until tender.
  • When done, drain, let cool for a few mins and mash with a 4 tablespoons of milk and 2 tablespoons of dairy-free butter and set aside.
  • Melt butter in a sauce pan, add green onions and cook for a minute, then add in cornstarch and cook for a minute.
  • Slowly whisk in the milk, then bring to a rolling simmer while stirring continuously (to avoid any lumps) for 3 - 4 minutes until the sauce is thick.
  • Switch off the heat, then stir in mustard, nutmeg, anchovies, fish pie mix, baby spinach and peas before transferring mix to a baking dish.
  • Top with the mashed potatoes and bake for 25 minutes in the hot oven until golden and the mixture is bubbling.

Notes

    • If you are starting with whole fish, then make sure to cut them into similar-sized chunks so they cook at the same time.
    • If you have less fish than the recipe calls for, you can bulk up your fish casserole with extra veggies.
    • Choose fresh fish, vegetables, and herbs to ensure the best flavor and texture in your casserole.
    • Season each layer with salt, pepper, and any desired herbs or spices to enhance the overall flavor.
    • Ensure you're using an appropriately sized casserole dish. It should be large enough to comfortably fit all the ingredients without overflowing.
    • Always preheat your oven to the specified temperature in the recipe to ensure even cooking.
    • If the casserole tends to brown too quickly on top, cover it with aluminum foil for part of the baking time to prevent excessive browning.
    • Allow the baked fish casserole to rest for a few minutes after removing it from the oven. This helps the flavors meld together, and it will be easier to slice and serve.
    • Baked casseroles are best served hot, so try to time your meal to be ready when the fish casserole comes out of the oven.
    • There are 7 WW Blue Plan SmartPoints in one serving of this.
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Nutrition

Calories: 287kcal | Carbohydrates: 31g | Protein: 17g | Fat: 11g | Saturated Fat: 2g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 31mg | Sodium: 232mg | Potassium: 939mg | Fiber: 5g | Sugar: 2g | Vitamin A: 1310IU | Vitamin C: 39mg | Calcium: 147mg | Iron: 2mg