Step 1

Bake the squash the caramelized onion: Preheat the oven to 400 degrees F(205 c). In a square 9x9 lasagna dish, add the onions, salt, sugar, and oil and toss well.

Step 2

In another baking sheet, add the butternut squash and add the oil, salt, pepper, and thyme and toss well to coat. Then spread out evenly.

Step 3

Put the onion dish and the butternut squash baking sheet to bake. Check at 12-13 minute mark and mix them around. Add the balsamic vinegar and vegan Worcestershire sauce to the onions and mix in.

Step 4

Then continue to bake for another 10 minutes for the onions. Depending on your butternut squash, it might get done in that time, earlier or later. Once the butternut is tender to preference, remove the dish. The onions should also be caramelizing by now. If not, then you can move them around a little bit and then continue to cook for another few minutes.

Step 5

Make the cream sauce: by adding all the ingredients to a blender and blending until smooth. Blend for 1 minute then let it rest for 5 minutes and blend again so that the cashews break down really well.

Step 6

Thaw the spinach if you haven't already and squeeze it to remove excess moisture. Then add the salt and pepper flakes and mix in and set aside.

Step 7

Assemble the lasagna : remove the caramelized onions from the lasagna dish into another bowl. Then add about a 1/4 cup of the blended sauce in the dish, 1/4 cup of water, then place no-boil lasagna noodles (you'll need 12-16 noodles depending on the number of layers).

Step 8

Add 3 noodles then add some more of the cream sauce. Put the butternut squash evenly on this layer. Add some more cream sauce.

Step 9

Add a layer of the lasagna noodles. Add some cream sauce, some spinach, a little bit of the caramelized onion, and more cream sauce or you can use vegan mozzarella.

Step 10

Top it with another layer of lasagna noodles. Add some cream sauce. All of the remaining caramelized onion. Top it with some more cream sauce or you can use a mix of sauce and vegan mozzarella and the next layer of the lasagna noodles.

Step 11

Then add all of the cream sauce all over. Then top it with some vegan mozzarella and vegan parmesan and pepper flakes.

Step 12

Drizzle another 1/4 cup of water around the edges of the noodles. Then cover the dish with a foil and bake at 350 degrees F (180 c) for about an hour.

Step 13

Let the lasagna sit for another 10 minutes then open the foil and serve. Cool compeletely and refrigerate for upto 5 days. Or freeze for upto 2 months. Freeze individual slices tightly wrapped in foil. Reheat in the oven for 20-25 mins.