If you believe what you see in cartoons, you would think that mice eat cheese. Actually, they like to eat fruits, seeds and grains. They are omnivorous, which means they eat both plants and meat, and the common house mice will eat just about anything it can find. In fact, if food is scarce, mice will even eat each other.
Mice have voracious appetites. They eat around 15 to 20 times per day, so they build their homes nearby places that have readily accessible food sources.