Mary Berry Spinach and Mushroom Lasagne is a vegetarian version of traditional lasagne, where mushrooms and spinach replace the usual meat filling.
300 g mushrooms, sliced
200 g fresh spinach
1 medium onion, finely chopped
2 cloves garlic, minced
2 tbsp olive oil
1 tsp dried oregano
Salt and black pepper to taste
40 g unsalted butter
40 g plain flour
500 ml milk
60 g grated Parmesan cheese
Pinch of nutmeg
9–12 lasagne sheets
150 g grated mozzarella or cheddar cheese
Prepare the oven – Preheat the oven to 180°C (350°F).
Cook the onions and garlic – Heat olive oil in a large pan and sauté the onion until soft. Add garlic and cook briefly.
Add mushrooms – Stir in the sliced mushrooms and cook until they release moisture and begin to brown.
Add spinach – Add fresh spinach and cook until wilted. Season with oregano, salt, and pepper.
Prepare the white sauce – Melt butter in a saucepan. Stir in flour and cook for one minute.
Add milk gradually – Whisk in the milk slowly, stirring constantly until the sauce thickens.
Add cheese and seasoning – Stir in Parmesan cheese and a pinch of nutmeg.
Start layering – Spread a little white sauce in the bottom of the baking dish.
Add pasta sheets – Place a layer of lasagne sheets over the sauce.
Add vegetable mixture – Spread some spinach and mushroom filling over the pasta.
Repeat layers – Continue layering pasta, vegetables, and sauce until the dish is full.
Finish with cheese – Spread remaining sauce on top and sprinkle grated mozzarella or cheddar.
Bake the lasagne – Bake for 30–35 minutes until the top is golden and bubbling.
Rest before serving – Let the lasagne sit for 10 minutes before slicing.