Fluffernutters
mashed potatoes
oatmeal
Goldfish graham crackers
tortilla chips (briefly)
I second the Unisom (doxylamine formulation, not diphenhydramine). It's very well studied (possibly the most studied during pregnancy), so I felt comfortable with it, just stop before nursing. You can take just half a pill, too. It may make driving difficult, but if that's an issue then even just taking one in the evening might help you get a bit more down. After taking my first dose of it, I took a nap, then woke up craving beef & broccoli, which DH promptly procured - my healthiest meal in months.