[auston]

I believe you may be misinformed: Calorie for calorie, broccoli has more protein than a sirloin steak. As stated in the other responses pretty much everything has protein in it.

Additionally, the only vital nutrients in meat are b12 and iron, both of which are available elsewhere (lentils are great for iron & supplement is available for b12)

[Draco6slayer]

Actually, calorie for calorie is not a valid counter. Per wolfram alpha, you'd have to eat 4.0kg of broccoli per .41kg of steak (average steak size).

Apart from that, I would cede to your points about the b12 and iron, but if you want calories to sustain you, meat is definitively the most efficient way to go about it.

[mlent]

Yeah, you have to eat more quantity-wise (but really, not that much more). Personally, I love eating, so I don't complain about it :) Eating many times during the day is healthier for your body anyways.

I make a vegan sandwich with 30g of protein and about 700 calories. Add a protein shake and a side of chickpeas and you're pushing 90g. It's shockingly easy (and healthy) to load up on vegan calories if that's your goal!