Cook lasagna noodles according to the package directions.
Saute onion and garlic in oil until tender. Add vegeburger or gluten.Stir in spaghetti sauce and parsley. Simmer for 5 minutes.
Combine tofu and spinach and yeast flakes.Put a thin layer of sauce and vegemeat on the bottom of a Large baking dish.
Place on layer of (3-4) noodles (slightly overlapped) on top of the sauce. Add another layer of sauce (can add a sprinkle of parmesan cheese too).
Repeat the last step until you get to the middle layer (usually there are 3-5 layers total depending on the depth of your pan).
In the middle, layer the tofu & spinach, then continue with the previous layering of sauce & vegemeat and noodles.
The top layer should be covered in sauce with mozzarella or soy cheese sprinkled on top.Bake for 1 hour at 350 degrees F or 180 degrees Celsius.