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Vegetable Lasagne Mary Berry Recipe

This vegetable lasagne is rich, comforting, and full of flavor, made with layers of mushrooms, spinach, tomato sauce, and a creamy cheese sauce. It’s a meat-free family favorite that’s perfect for make-ahead meals and cozy dinners.
Prep Time 25 minutes
Cook Time 40 minutes
Total Time 1 hour 5 minutes
Servings: 4 People
Course: Main Course
Cuisine: Italian
Calories: 450

Ingredients
  

  • 8 sheets Lasagne sheets Dried or fresh
  • 2 tbsp Olive oil For cooking
  • 1 large Onion Finely diced
  • 500 g Button mushrooms Thinly sliced
  • 2 Garlic cloves Finely grated
  • 2 tbsp Plain flour Thickening
  • 800 g Chopped tomatoes Canned
  • 1 tbsp Fresh thyme Chopped
  • 2 tsp Balsamic vinegar Adds depth
  • 2 tbsp Sun-dried tomato paste Optional
  • 200 g Baby spinach Fresh
  • 55 g Butter Cheese sauce
  • 55 g Plain flour Cheese sauce base
  • 600 ml Milk Warm
  • 2 tbsp Dijon mustard Mild flavor
  • 150 g Mature cheddar Grated
  • 55 g Parmesan cheese Coarsely grated
  • – – Salt & black pepper To taste

Equipment

  • 1 Large frying pan For vegetable sauce
  • 1 Medium saucepan For cheese sauce
  • 1 Whisk Helps avoid lumps
  • 1 Ovenproof baking dish About 2.25-litre
  • 1 Wooden spoon Stirring sauces
  • 1 Sharp knife Vegetable prep

Method
 

Step 1:
  1. Soak the lasagne sheets in hot water for 10–15 minutes until softened, then drain and set aside.
    Vegetable Lasagne Mary Berry Recipe
Step 2:
  1. Heat olive oil in a large frying pan. Add the onion and cook for 3–4 minutes until soft and lightly golden.
    Vegetable Lasagne Mary Berry Recipe
Step 3:
  1. Add mushrooms and garlic, cooking over high heat until all excess moisture evaporates.
    Vegetable Lasagne Mary Berry Recipe
Step 4:
  1. Sprinkle in the flour and stir well. Add chopped tomatoes, thyme, balsamic vinegar, sun-dried tomato paste, and spinach. Cook until bubbling and thickened. Season and remove from heat.
    Vegetable Lasagne Mary Berry Recipe
Step 5:
  1. Melt butter in a saucepan. Stir in flour, then slowly whisk in warm milk. Cook until thick, then add Dijon mustard and two-thirds of the cheese. Season gently.
    Vegetable Lasagne Mary Berry Recipe
Step 6:
  1. Preheat oven to 200°C (180°C fan). Layer vegetable sauce, cheese sauce, and lasagne sheets in the dish. Repeat layers, finishing with cheese sauce and remaining cheese.
    Vegetable Lasagne Mary Berry Recipe
Step 7:
  1. Bake for 35–40 minutes until golden and bubbling. Rest for 5 minutes before serving.
    Vegetable Lasagne Mary Berry Recipe

Notes

I always let the lasagne rest before slicing—it helps the layers hold together better. If I’m making this ahead, I assemble everything earlier in the day and bake when needed. It also freezes really well once fully cooled.