What are some breakfast ideas when you have gestational diabetes?

I’m 33 weeks pregnant and was recently diagnosed with a touch of gestational diabetes. I am no longer allowed to have more than 15g of carbs for breakfast before 10:00 am.
So I have been reduced to some fruit and a glass of milk or yogurt for breakfast. Prior, I was a milk and cereal, muffins, oatmeal, eggs, bacon, and toast eater for breakfast. Now I am starving again after I’ve been at work for an hour with this reduced carb breakfast.
It’s hard to have the energy I need to keep up at work when I haven’t had a filling breakfast. I start at 8:00 and I don’t get my lunchbreak until 1:00 usually. I can bring a snack to tie me over until lunch, but I still can’t even eat that until after 10.
So do you have any good ideas of foods that will fill me up better but still be within the 15g of carbs guideline?