N.P.
Actually I think you need to do one of three things.
A. put her down for a real short 30 minute nap about an hour after she is up for the day. I do daycare and seriously 95% of the kids under 22 mos still need this little bit every day. But wake her after 30 minutes of sleep. Then put her back down for a real afternoon nap at 12:30.
B. Feed her lunch at 10:30, this will stretch the nap start time a bit later. When she wakes up after 1.5 hours, don't get her up right away. Wait 10 minutes and see if she will go back to sleep, most do. She may not really be ready to wake up and just readjusting.
C. Follow the modified EASY schedule that infants should follow. EASY is eat, activity, sleep, you time. For older kids it's more like eat, activity, eat, sleep, you time. So, the second she gets crabby in the morning you put her down for nap. They seriously do usually get crabby about an hour after they wake, like I said above. Most parents don't catch this as a cue after infancy though because they think the age of the child means they only need one nap. Anyway, put her down when she gets crabby immediately no matter how short since waking. I bet she will nap. Let her nap as long as she wants. When she gets up give her a small snack, then let her play. About an hour later feed her lunch (or around 11, whichever is last). After lunch put her down for another nap or wait till she gets the slightest whiney and put her down then. You have to catch them the slight whine stage. If you go to the full blown crabby stage you missed the window and they won't go right to sleep but will tantrum and be terrible.