Tofu is cheap and high in protein and is great scrambled with some mushrooms and spices. You don't Need eggs!
I enjoy some well-prepared tofu - I just had some last night, actually - but for most people, it is absolutely not an adequate substitute for eggs without seriously compromising on flavor and utility (i.e. baking.)
A good tofu scramble tastes more like eggs than eggs thanks to black salt. And it's more flavorful than your normal egg+butter fry because it has an array of spices.
Recipe: https://www.youtube.com/watch?v=Vc5pZ-PY-H8
The compromise is mainly having to introduce a new food to your diet and change your habits.