This vegetarian lasagna recipe is a delicious and healthy alternative to the traditional meat lasagna. Made with layers of pasta, vegetables, and cheese, this dish is packed with flavor and nutrients. The recipe calls for spinach and mushrooms, but you can also add other vegetables like zucchini or eggplant. The cheese can be substituted with a vegan alternative for a dairy-free option. This lasagna can be served with a side salad for a complete meal.