It's always nice to start with minimal fat when bulking. Lucky lady.
If she wants to gain I suggest she eats approx between 1700-1900 cals per day for now. Approx 175-200 grams of protein with ther rest of the cals fats and carbs.
Supplements for a woman starting out.....a good multi should be fine. I like ones with digestive enzymes myelf. If her protein intake is over 50% of her cals then maybe a calc/magnesium supplement as well.
I also suggest fish oils and evening primrose oil for supplements to be included with fat cal count.
Good whey protein.....check out the True Protein website. Tell her to order orange creamsicle.......she will sooooo love it! I personally also like EAS brand of protein powders.
Since she is new to this she will see a muscle gain and fat loss....this is something all newbies go through. But once her body adapts this will no longer occur. She will eventually have to gain some fat as she gains muscle. She can keep this to a minimum however, with a diet of clean unprocessed foods.