i'll second the xd subcompact. the slide is nice and big, so she can get a good grip, and the trigger is pretty standard for striker fire. a little nicer than the glock IMO.
Favorite range gun for the money - CZ 75B or STI Spartan V 9mm
Go-to carry setup - Walther PPS or PPQ in FIST kydex holster 1AK
Favorite semi-auto design - HK P7
"A Sig is like a lightsaber - not as clumsy or random as a Glock."