Why was Jehovah angry with the Isrealites for eating the quail he had given them?

(Numbers 11:31-33) And a wind burst forth from Jehovah and began driving quails from the sea and letting them fall above the camp about a day’s journey this way and about a day’s journey that way, all around the camp, and about two cubits above the surface of the earth. 32 Then the people got up all that day and all night and all the next day and kept gathering the quail. The one collecting least gathered ten ho′mers, and they kept spreading them extensively all around the camp for themselves. 33 The meat was yet between their teeth, before it could be chewed, when Jehovah’s anger blazed against the people, and Jehovah began striking at the people with a very great slaughter.