[[Warning: I am vegetarian and sometimes a bit rabid]]

Protein, schmo-tein! :-) Seriously, eating a balanced diet that contains nuts, whole grains, legumes, and veggies will provide the average couch potato with sufficent protein--even with no meat in the picture. Hey! I warned you :-)

Now, if you work out significantly, you may need more than just a balanced diet will give you. Since I have high cholesterol (yep, even without eating meat--I got really bad genes), upping our cheese intake wasn't a real option. Instead we've done things like adding TVP to our spaghetti sauce, tossing nuts into stir fries and cereals, and added blocks of tofu to some of our soups.

But, I don't think we felt ourselves low on protein until we were riding upwards of 100 miles/week and then only after rides of 50-60miles. Of course, this is only my opinion and I don't lay claim to be anything more than an amatuer when it comes to nutrition.