They are not the same thing. Keema or minced meat is primally premium cuts of meat either hand chopped or using meat grinders. Thats why for preperations like seekh kebabs or shaami kababs, fat is added so that the kababs turn out moist. Ground meat on the other hand is fat and meat ground smoothly together. Keema is not as creamy (due to less fat). If you wish to use real keema for this recipe, I suggest purchasing premium chunks of meat and asking the butcher to run it through the meat grinder for you!