Common misconception - "But you need protein and where do you get it from?" If you combine the right foods together you can build proteins. A good example is eating a salad made with lentils and rice. They, together, make up a complete protein.
I found this information off of this website http://www.savvyvegetarian.com/articles/get-enough-protein-veg-diet.php and they explain it really well.
Each plant food has its own unique amino acid profile, from green leafy veggies to tubers, from barley to quinoa, from lentils to tofu, from macadamias to brazil nuts. By eating a variety of plant foods with 'incomplete proteins' throughout the day, we can easily get enough 'complete protein.' For lacto and ovo-lacto vegetarians, any food can be complemented by the high quality proteins in dairy products or eggs, but it isn't at all necessary to include animal foods to get enough protein in your diet.
Vegetables and fruits also contribute significant amounts of protein. A one cup serving of avocado, for example, has 3 grams of protein, and a medium potato with skin has 4 grams.
Vegans and vegetarians can't help getting all the essential amino acids, through eating different combinations of grains, legumes, nuts & seeds, vegetables & fruit several times throughout the day.
Eating for complete protein isn't a scientific system of food combining, where you have to keep track and analyze everything you eat. It's a natural traditional way of eating, which most human beings have thrived on, for thousands of years.
As a rough guide, the chart below shows some examples of foods which go together well. This chart is very limited, in reality the possibilities could fill several pages, and you don't need to rely on precise combinations of food for complete protein.
So vegetarians and vegan's still get protein. Are you still confused about what Vegan's can eat? Well, take a look at my completely vegan supper tonight! It was delish and the kids loved it too.
Broccoli and Cheese Soup ("cheese" made from nutritional yeast that kinda looks like fish food flakes) and
Home Made Vegan Bun's (thanks A for your amazing bread recipe!!)