Try using herbs and fresh ground spices (or dry that are gluten free, MSG free, sugar free-you'd be surprised whats in some of this stuff if you arent careful) to season your chicken. I use a lot of cumin, salt, pepper. Chicken goes great with rosemary, thyme as well. (i actually cut up a bunch of fresh herbs including bay leaf and stuff under the skin with butter and slow roast)
Definitely stay away from soy in all forms. Pure Seasame oil at the end of a stir fry with fresh ginger will give veggies a fantastic flavor (you wont miss the soy sauce)
plug in paleo or primal recipes and you'll find TONS of recipes and sites.
A lot of people replace rice with riced cauliflower.
If you aren't worried about the carb load switch up potatoes with sweet potatoes, plantanes....but you'll get a lot more bang for your buck flavor wise if you do more green veggies, roasted brussel sprouts with butter are addictive (to me at least).