Grilled Feta, Tomato & Carmelized Onion Sandwhiches

This is not your standard grilled cheese sandwhich but rather a little taste of heaven.  On our drive back from Florida last summer, we stopped in Baton Rouge to meet up with my cousin who lives there.  She took us to a little place called Zoe's Kitchen for lunch where I had the most amazing chicken sandwhich.  It was obviously good if I'm still thinking about it almost a year later.  That sandwhich is what inspired me to jazz up my standard grilled cheese sandwhiches.  Hope you enjoy as much as I did.

-Rustic bread, sliced (think italian, french, focaccia, ciabatta, etc.)
-Block of feta, sliced (about 1/4 inch thick)
-Tomatoes, thinly sliced
-Carmelized onions (see below if you need help with this one)
-Kalamata olives (optional)
-Margarine or butter
-Sliced chicken breast, cooked (optional)

Butter your bread and lay face down in a hot pan (medium heat).  Layer with feta, tomato, onions (and chicken if you have it).  Top with another piece of buttered bread.  Cook as you would and other grilled cheese sandwhich.  When it's time to flip, do so carefully.  We always eat grilled cheese with some tomato herb soup & pastina and this sandwhich is no exception.   The kalamatas don't really go in the sandwhich but go hand in hand with feta for me so I always serve them on the side!

In case you've never carmelized onions before, here's what you need to do...

-Several medium or large onions, yellow, white, or red
-Olive oil
-Butter (optional)
-Salt
-Sugar (optional)

Peel and slice onions to desired thickness.  I slice mine pretty thin.

Coat the bottom of the a saute pan with olive oil, or a mixture of olive oil and butter (about 1 teaspoon per onion). Heat the pan on medium high heat until the oil is shimmering. Add the onion slices and stir to coat the onions with the oil. Spread the onions out evenly over the pan and let cook, stirring occasionally. After 10 minutes, sprinkle some salt over the onions.  If you want, you can add some sugar to help with the caramelization process. (I add about 1-1.5 teaspoons for about 2 large onions).

These are the onions after 10 minutes.

Let cook for 30-40 minutes more, stirring every few minutes. Store refrigerated for several days in an air-tight container.

Onions after 40 minutes.  YUM!  I could eat them just like this.