In a mixing bowl, combine mushroom, onion, olive oil, basil, tomato past, tomato, salt & pepper. Mix well together.
Prepare baking tray(s) by spraying with oil (I used 2 x 22cm baking trays)
Layer on a tablespoon of the mushroom mixture on the bottom of the tray(s) this helps the lasagna to not stick to the bottom
Line with gluten free pasta sheet to create first layer
Layer bachemal sauce
Layer mushroom mixture
Sprinkle layer of plant based cheese (evenly spread)
Repeat layering until baking dish reaches just under the top
Coat top layer with bachemal sauce and sprinkle with plant based cheese
Cover with foil
Place in middle of oven and bake for approx 50minutes
Lasagna is cooked once you can piece a fork through, once this is done, remove foil cover and brown top layer using grill function for approx 4-5 minutes or until brown
Serve with a garden salad