With just a gas stove and rice cooker, what kind of food staple based on dough or batter can she make most simply? I don't know what you call the category of "bread, cake, pancake".
My mom lives Hong Kong when Toronto's cold. Here are strictures:
Her flat doesn't have a convection oven. She never bought microwave oven - the FDA
She could buy a counter-top convection toaster oven, but let's rule this out. If nobody comes up with anything, she will reconsider. Her kitchen looks like
No milk of any kind, like coconut or soy as they taste icky to her.
No eggs. She has medical issues and her doctor forbid them.
Bon Appetit says
8. Mussels Without Bread Are No Mussels at All
A mussels-must: Serve plenty of fresh, crusty bread with a pillowy interior alongside. The bread will serve as a vehicle for that aromatic, boozy, briny sauce you worked so hard to create. And if you want to flex even harder, throw a little mayo on that bread. Maybe a ginger-y, garlicky aioli? Just a thought. And here's one more. Don't forget to place a large bowl on the table for the empty shells. That's just common courtesy.