One of my greatest weight loss secrets is cooking stir fry. Stir fry is simple to prepare, you can use almost any foods, and is generally very low calorie.
Spray a Wok with cooking spray (about 15 calories to coat a medium pan), toss in all the veggies you want (onions, peppers, zuccini, broccoli, really anything), add some lean meat (beef, chicken, pork) and stir, stir, stir.
You can add garlic, soy sause, a bit of bbq sauce, etc. for flavor if you want!!