Cheesy Broccoli, Potato, and Mushroom Casserole

CB

Created By

BIG SEE

Published

May 17, 2026

Cheesy Broccoli, Potato, and Mushroom Casserole

"A comforting and creamy vegetable bake featuring tender broccoli, potatoes, and mushrooms enveloped in a rich crème fraîche and Gouda cheese sauce. A guaranteed family favorite that is incredibly easy to prepare!"

Cheesy Broccoli, Potato, and Mushroom Casserole
Prep Time
20 mins
Cook Time
85 mins
Servings
4 people
Calories
780 kcal

📊 Nutrition Facts (per serving)

  • Calories: 780 kcal
  • Protein: 31g
  • Carbs: 43g
  • Fat: 54g
  • Fiber: 7g

🛒 Ingredients

Vegetables

  • 600g broccoli (fresh, cleaned and cut into small florets, or frozen (unthawed))
  • 400g potatoes (peeled and cut into small cubes)
  • 500g mushrooms (fresh and sliced, or frozen (thawed and sliced))

Cream Sauce & Cheese

  • 250g crème fraîche
  • 200ml heavy cream
  • 2 tbsp cornstarch (approx. 30g)
  • 2 tsp salt
  • 1 tsp black pepper (freshly ground)
  • 300g Gouda cheese (grated)

👨‍🍳 Instructions

Step 1: Prepare the Vegetables

⏱️ time: 15 mins mins

Place the prepared broccoli florets and sliced mushrooms directly into a large baking dish. Peel the potatoes, cut them into small, uniform cubes, and add them to the dish with the other vegetables.

💡 Chef's Tip: Cutting the potatoes into small, even cubes is crucial to ensure they cook through completely during the baking process.

Step 2: Mix the Cream Sauce

⏱️ time: 5 mins mins

In a medium bowl, whisk together the crème fraîche, heavy cream, cornstarch, salt, black pepper, and approximately one-third of the grated Gouda cheese until smooth and well combined.

💡 Chef's Tip: Whisking the cornstarch thoroughly into the cold cream before mixing prevents any lumps from forming in your sauce.

Step 3: Combine and Assemble

⏱️ time: 5 mins mins

Pour the cream mixture over the vegetables in the baking dish. Toss everything together gently until all the vegetables are evenly coated with the sauce.

💡 Chef's Tip: Ensure the potatoes are well-distributed so they cook evenly in the liquid.

Step 4: Bake to Golden Perfection

⏱️ time: 85 mins mins

Sprinkle the remaining grated Gouda cheese evenly over the top. Bake uncovered in a preheated oven at 160°C (convection) or 200°C (standard top/bottom heat) for about 80 to 90 minutes, until the potatoes are tender and the cheese top is beautifully golden brown.

💡 Chef's Tip: If the cheese browns too quickly before the potatoes are tender, loosely tent the dish with aluminum foil for the remaining baking time.

📝 Author Notes

I recently found this recipe, and it was an instant hit with the family. The kids ask me to make it almost every week. Try it yourself, it's guaranteed that everyone will love it!

🥡 Storage Tips

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 180°C (350°F) for 15-20 minutes to restore the cheese's texture, or microwave in intervals.

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