The best method to determine your daily calorie needs (for weight loss or maintenance) is by using the calorie calculator. For some women, the region of 1400-1600 calories is a maintenance amount (for others, this amount will lead to weight loss).
The AHA has a blanket recommendation of 2000 calories per day.
This is not a prescription, but a baseline to begin fat loss.
Here are some basic ideas for a 1500 calorie diet (including a vegetarian plan).
Lichtenstein, A. H., Appel, L. J., Brands, M., Carnethon, M., Daniels, S., Franch, H. A., … & Wylie-Rosett, J. (2006). Diet and lifestyle recommendations revision 2006 A scientific statement from the American Heart Association nutrition committee. Circulation, 114(1), 82-96. Link
Munoz, K. A., Krebs-Smith, S. M., Ballard-Barbash, R., & Cleveland, L. E. (1997). Food intakes of US children and adolescents compared with recommendations. Pediatrics, 100(3), 323-329. Link