In reply to LeeWood:
Look up some recipes for dahl's. Cheap as chips, high protein, quick and easy as well. Thousands of recipes out there to go at. You can eat it on its own, with rice, chapati, or tortilla wraps (which are a thin chapati really), if you're reducing carbs.
Make your own hummus. You can use peanut/almond/cashew butter if you don't have tahini. You can also use different beans, such as butter beans or kidney beans, instead of chickpeas. Go wild and mix it up a bit. The supermarket stuff is both bland and expensive.
Miso soup, is another easy meal. The advantage of a soup is that it's filling and you can tailor the carbs and protein, as required. Boil water, add paste, that's it really. Add whatever veg you have kicking about or in the freezer (onion, spring onion, garlic, ginger, peas, sweetcorn, grated carrot, pulses etc.) Then add some protein such as quorn chunks, boiled eggs or, if you're feeling adventurous, poach some eggs in the water. If you want it to be more filling, add some noodles.