Key Lime Pie

I'm not sure why we call this pie Key Lime, because there are none in it, but it's still delicious and the name stuck. It's always a hit and there is never any left. I wish I had a picture to post of it....It's the easiest thing in the world to make!

2 graham cracker pie crusts
1 large coolwhip thawed to room temp
1 small frozen limeade
1 can Eagle Brand Milk
few dashes lemon juice
few drops green food coloring
(lime slices for garnish)

Mix together cool whip, limeade, milk, lemon juice and food coloring until completely smooth, no lumps. Put into pie crusts. Top with lime slices in the middle. Refrigerate for several hours.