Prep
Preheat oven to 375°F (190°C).
Lightly grease a 9x13 baking dish.
If using regular noodles, cook according to package instructions and drain.
Make the Cashew Ricotta
Drain soaked cashews.
Add cashews, almond milk, nutritional yeast, lemon juice, garlic, salt, pepper, and Italian seasoning to a blender.
Blend until smooth and creamy, scraping down sides as needed.
Sauté the Spinach
Heat olive oil in a skillet over medium heat.
Add minced garlic and cook for 30 seconds.
Add chopped spinach and cook 2–3 minutes until wilted.
Remove from heat and let cool slightly.
Stir spinach into the cashew ricotta mixture.
Assemble the Lasagne
Spread a thin layer of marinara sauce in the baking dish.
Add a layer of noodles.
Spread a layer of cashew spinach mixture.
Spoon marinara sauce over top.
Repeat layers until ingredients are used, finishing with marinara on top.
Optional: sprinkle vegan mozzarella on top.
Bake
Cover with foil and bake for 25 minutes.
Remove foil and bake an additional 10–15 minutes until bubbly.
Let rest for 10–15 minutes before slicing.