white rice! i LOVE buttered white rice. you can make risotto from arborio white rice- a little protein, fat, and carbs; a nice buttery, cheesy flavor. i think she'll like it. also, Chebe carries a line of mixes to make various gluten free breads (foccacia, cinnamon rolls, buns, flat breads). these are technically primal, as the ingredient is tapioca and they are the closest thing to wheat bread i've tasted. avoid nasty oils, there is a positive correlation between trans fat consumption during pregnancy and LOW birth weight.
also, bear with me here. *I* have noticed that my sugar cravings stop when i eat 5 cups greens per day for a few days. greens are rich in vitamin k1, folate, beta carotene, and other good stuff. i don't know if she can stomach it right now, but it's worth a try for her later when she's not dealing with nausea to eat a bunch of greens every day (chard, kale) to see if that helps with cravings later on. but for now, anything that's remotely nutritious should be encouraged if she can keep it down.