In a large skillet, saute garlic and mushrooms in oil until all the liquid is cooked out.
Add 1/3 tomato puree to mushrooms and garlic, cook 2 to 3 minutes, and remove from heat.
In a microwave-safe bowl, combine spinach, garlic salt, Italian seasoning and tofu. Blend until the mixture is an even consistency.
Heat in a microwave on high for 2 minutes.
In a 9x9 inch baking pan, pour one thin layer of remaining tomato puree, a layer of noodles, 1/2 the tofu mixture, the mushroom sauce, a layer of noodles, 1/2 the tofu mixture, a layer of tomato puree, a layer of noodles, and a final layer of tomato puree.
