Heat the olive oil in a large skillet over a medium flame. Add the shallots and vegan beef crumbles. Continue cooking for 5-6 minutes, or until the crumbles are browning and the shallots are tender. Add the garlic. Cook for another minute or two, until the garlic is very fragrant, stirring constantly.

Add the diced tomatoes, tomato sauce, oregano, and lasagna noodles to the skillet, along with ¾ cup water. Mix well, submerging the noodles as best you can. Bring mixture to a boil. Reduce the heat to low, then simmer the skillet lasagna for 10 minutes. Stir and make sure all of the noodles are well covered. Simmer for another 5-7 minutes, or until the noodles are tender.

Stir in the cashew cream and the baby spinach, if you're using. Continue cooking until the greens are tender. Taste the pasta; most sauces are salty, so it may not need any salt, but add salt and freshly ground pepper to taste. Serve, with vegan parmesan if you like.