I've had GREAT luck with 2 spiral-bound cookbooks. I have no commercial interest in them whatsoever, I just have really liked these:
Cooking TLC, Truly Low Carb Cooking, Vol. 1, by Karen Rysavy. I think it's available for cheap on Amazon.com or at
www.trulylowcarb.com
this is an excellent, practical, cook-for-the-family oriented book on lots of simple recipes, from great dressings, main dishes, breads, and desserts. It's easy, fast, and generally uses ingredients I have around the house.
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A second excellent book is Easy Living Low-Carb Cooking, by Theresa Sloan and Tracy Westbrook. It's available from
www.carbsmart.com and has outstanding, fast, practical and delicious recipes. It is comb-bound and is pretty cheap, too.
I have some other recipe books (CAD cookbook, Schwarzbein cookbook, Ultimate Low Carb Diet Cookbook) and these are also good, but for no-nonsense working-mom meals, I almost always reach for Cooking TLC or Easy Living Low-Carb Cooking.