Adjusting and image Size to fit a div (bootstrap)

I'm trying to get an image to fit within a specific size div. Unfortunately, the image isn't conforming to it and is instead proportionally shrinking to a size that isn't big enough. I'm not sure what the best way is to go about getting the image to fit inside it is.

If this isn't enough code, I'd be happy to supply more, and I'm open to fixing any other errors that I am overlooking.

Here is the HTML

<div class="span3 top1">  
        <div class="row">
          <div class="span3 food1">
              <img src="images/food1.jpg" alt="">
          </div>
        </div>
            <div class="row">
              <div class="span3 name1">
                  heres the name
            </div>
            </div>
          <div class="row">
              <div class="span3 description1">
                  heres where i describe and say "read more"
            </div>
            </div>


      </div>

My CSS

.top1{

    height:390px;
    background-color:#FFFFFF;
    margin-top:10px;


}

.food1{

background-color:#000000;
height:230px;


}

.name1{

background-color:#555555;
height:90px;

}

.description1{

background-color:#777777;
height:70px;


}

Try this way:

<div class="container">
    <div class="col-md-4" style="padding-left: 0px;  padding-right: 0px;">
        <img src="images/food1.jpg" class="img-responsive">
    </div>
</div>

UPDATE:

In Bootstrap 4 img-responsive becomes img-fluid, so the solution using Bootstrap 4 is:

<div class="container">
    <div class="col-md-4 px-0">
        <img src="images/food1.jpg" class="img-fluid">
    </div>
</div>

You can explicitly define the width and height of images, but the results may not be the best looking.

.food1 img {
    width:100%;
    height: 230px;
}

jsFiddle

...per your comment, you could also just block any overflow - see this example to see an image restricted by height and cut off because it's too wide.

.top1 {
    height:390px;
    background-color:#FFFFFF;
    margin-top:10px;
    overflow: hidden;
}

.top1 img {
    height:100%;
}