This Mozzarella Potato Rösti with Creamy Onion-Mushroom Sauce is the definition of hearty comfort food. Crispy on the outside, soft and cheesy inside, these golden röstis pair perfectly with a rich, velvety mushroom sauce that’s full of earthy flavor. Perfect for autumn or winter evenings, this vegetarian dish feels indulgent yet wholesome.
Why You’ll Love This Recipe
- Crispy, cheesy, and deeply satisfying
- Vegetarian comfort food at its finest
- Easy to make with simple pantry ingredients
- Perfect for cozy fall or holiday dinners
- A crowd-pleasing side or main dish
Recipe Overview
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 4
Ingredients
For the Potato Rösti:
- 2 lbs (900g) potatoes, peeled and grated
- 1 cup mozzarella cheese, shredded
- 1 small onion, finely grated
- 2 tbsp flour
- Salt and black pepper, to taste
- 3 tbsp olive oil or butter, for frying
For the Creamy Onion-Mushroom Sauce:
- 1 tbsp olive oil
- 1 tbsp butter
- 1 medium onion, thinly sliced
- 10 oz (300g) mushrooms, sliced (cremini or button)
- 2 garlic cloves, minced
- 1 cup heavy cream (or dairy-free alternative)
- ½ cup vegetable broth
- ½ tsp dried thyme
- Salt and pepper, to taste
- Fresh parsley, for garnish
Instructions
- Prepare the Rösti:
- Squeeze excess moisture from the grated potatoes using a clean kitchen towel.
- In a large bowl, mix potatoes, mozzarella, grated onion, flour, salt, and pepper.
- Heat oil in a skillet over medium heat. Add spoonfuls of the mixture, flatten into patties, and cook until golden and crispy, about 4–5 minutes per side. Transfer to a paper towel-lined plate.
- Make the Mushroom Sauce:
- In a separate pan, heat olive oil and butter. Add onions and cook until soft and golden.
- Add mushrooms and sauté until browned and tender.
- Stir in garlic and thyme, cooking for another minute.
- Pour in vegetable broth and cream, stirring until thickened and creamy. Season with salt and pepper.
- Serve:
- Arrange the warm potato röstis on a plate and top generously with the creamy onion-mushroom sauce.
- Garnish with fresh parsley and a sprinkle of mozzarella if desired.
Tips & FAQs
Can I make this vegan?
Yes — use vegan mozzarella and a plant-based cream like oat or soy.
Can I make it ahead?
The röstis can be cooked ahead and reheated in the oven or air fryer before serving.
What else can I serve this with?
It pairs beautifully with a green salad or roasted vegetables for a complete meal.
Can I bake the röstis instead of frying?
Yes — bake them at 400°F (200°C) for 25 minutes, flipping halfway through for even crispiness.
Nutrition Summary
| Serving Size | Calories | Protein | Carbs | Fat | Sugar | Fiber |
|---|---|---|---|---|---|---|
| 1 serving | 410 | 14g | 30g | 26g | 6g | 4g |
Disclaimer: Nutrition values are approximate and may vary based on ingredients used.
