Try stews, chilis, etc.
Also, homemade chicken stock is one of my favourite things (boil a chicken carcass from the butcher with a halved onion, roughly chopped carrot, celery, some herbs, a little salt and pepper, bit of garlic, for a bit over an hour) and is super easy to do, freeze and then use as a base in a ton of recipes, or even just add some pasta and you've got a rough and ready chicken soup.
Cooking need not be difficult. By focusing on good, fresh ingredients you only need a couple to put together a great meal.
Also, great tip: Cook with spice (heat) and lots of flavour. You'll get full faster and feel satisfied longer.