It's not good for her to eat day after day like that.
I have several mouse eaters myself, and they eat once a week. Anywhere from 2 to 5 mice depending on the size of the snake.
How big is yours ? That will tell you how many will make a meal for her. Rarely one will eat too much, usually they stop when they get full, but overeating does happen and can result in a very sick snake.