If you are looking for vegan sources of protein, there is no shortage of optionslike hemp seeds, chia seeds, and spirulina. But, the last time I checked, hemp seed cost $18 per pound! That seems like an incredibly expensive way to get protein on the vegan diet.
cheap
7 Ways to Prepare Lentils
Lentils are one of the cheapest and most nutritious vegan foods you can eat. The great thing about them is that they can be prepared in so many different ways so they never get boring.