1. In an oven safe casserole pan add one cup of butternut squash soup to the bottom of the pan making sure that the bottom is fully coated. 2. Next shingle in three lasagna boards. 3. Next dollop ...
Meanwhile, make the tomato sauce ... Now put in another layer of lasagna and the remaining spinach. Add a layer of squash, a layer of tomato sauce and a final layer of béchamel.