Eggs are also a good source of protein. I prefer them poached and boiled rather than fried for the healthy reasons, but throw some boiled chopped up eggs into salads for extra panache, or just eat boiled eggs like they are. Eggs are also good for dinner. I find that omlettes with spinich are an egg-celent choice (ok that was bad I admit it) because the spinish is a really good source of iron and the eggs are a really good source of protein.

I agree with both the hummas and falafel ideas. Falafel is really good. Kinda give the concept of chicken nuggets sorta and taistes great when combined with tabule. Try switching to soy milk instead of tofu. the soy is still full of protein, but they come in yummy flavors, although milk itself does have protein in it, soy milk usually contains more.

Nuts and seeds are also good sources of protein. Serving a veggie lasagna (or if you like it eggplant parm) but having a salad with sunflower seeds and boiled egg will both give you the "feeling" of a filling, normal meal but also the protein is coming in through other places.

Nuts are also a great thing the snack on during the day in little baggies, but as a warning it is best to find if anyone in your work environment has an allery first as nut allergies can float through the air.

Also, your bean choices are not satisfying. Try adding a small amount of black beans to corn, rice and cheese, then rolling them to make enchaladas. The bean is not the most forward of all the ingredients, but it does add in to give the protein.

Also, really grainy whole grains have some protein in them. If your diet consists of white bread try switching it to a grainy wheat bread instead.