Step 1

Preheat oven to 180ºC. Place pumpkin on a lined baking tray. Spray with oil. Bake for 30-35 minutes or until tender. Spray a 20 x 30cm (base measurement) baking dish with oil.

Step 2

Meanwhile, spray a frying pan with oil. Heat over medium heat. Cook mushroom, stirring, for 4 minutes or until browned and the liquid has evaporated. Transfer to a plate. Spray pan with oil. Cook the bacon, onion and garlic, stirring, for 2-3 minutes or until golden. Reduce heat to medium-low. Add tomato and cook, stirring often, for 5 minutes or until the mixture thickens slightly. Stir in the mushroom.

Step 3

Heat the butter in a saucepan over medium heat until foaming. Stir in the flour for 1-2 minutes or until the mixture bubbles. Remove from heat. Gradually whisk in milk until smooth. Cook, stirring, over medium heat, for 5-7 minutes or until thick.

Step 4

Spread 1 cup of tomato mixture in dish. Top with 2 lasagne sheets, overlapping slightly, cutting to fit. Top with half the ricotta, spinach and pumpkin. Spoon over half the remaining tomato mixture. Repeat with the remaining lasagne sheets, ricotta, spinach, pumpkin and tomato mixture, finishing with lasagne sheets. Pour over the bechamel. Sprinkle with the parmesan and bake for 45-50 minutes or until golden.