7 grams a serving is plenty of protein, as you've suggested.
Recommended daily protein intake depends upon a person's height and gender, as well as a few other factors that tend to have small effects. For most adults, the theoretically ideal amount will fall somewhere around 40 to 50g of protein per day, with less for shorter women and more for taller men. Getting less than this can cause severe problems due to amino acid deficiencies (particularly when you always consume the same general protein source and it doesn't contain significant quantities of one or more of the amino acids you don't produce on your own), as well as muscular atrophy (exacerbated rather than improved by exercise, as an insufficient protein intake will prevent the microtears in your muscles from healing properly). Getting significantly more than this increases stress on your kidneys (although it has not been shown to solely lead to kidney failure) due to the larger quantities of nitrogen present in protein than other forms of food.
Though if you ever make your own cheese, paneer, etc., you can cook with the whey. It's good in bread.
I'm not expecting you people looking for quick, healthy food to eat while working on your startup to take the time to make your own cheese, but I love to cook. Paneer doesn't take long, at least: ( http://www.wikihow.com/Make-Paneer-%28Indian-Cheese%29 )
Making your own bread isn't too time-intensive, though. It's just a few short steps over the day, and working dough with your hands after spending hours up in your mind can be a very grounding break.
