You could try some bean & grain salads, adding the veggies and fruits you can eat.
Black bean soup, or black bean/winter squash chili, with or without meat.
How about chickpeas? They are very versatile. You can make GF crackers or bread with chickpea flour, which is lower carb than most other GF flours.
Nuts? Almond meal is another good add-in for GF baking, or to use for "breading" meats. TJ's has it at a reasonable price.
We eat a lot of nuts - fruit & nuts is a standard breakfast in our house - and I find I do not gain weight even with 3 servings of nuts/day, despite their apparent energy density. I've read studies that indicate not all the calories in nuts are absorbed.
When you choose rice - be mindful of the differences in short and long grain rice. Long grain rice has a lower glycemic index because it has a different primary starch molecule than short-grain rice. Also, converted rice has the lowest GI of all the rices, and TJ's now has a converted brown basmati rice (first spotted it 2 weeks ago).
http://www.mendosa.com/gilists.htm