It's low-fat, it's cold, and it's limey. It's more like a slushie than a milkshake because it's not creamy. It's icy.
And I can't get enough.
1/2 c. of frozen lime-ade right out of can (or less if you'd like a milder lime)
1/2 c. lime sherbet
1/2 c. skim milk
couple of ice cubes
I think the total calories is about 185, and the fat is nearly 0%.
If you're like me and also love the coconut, you could add a couple of tablespoons, if you don't mind the extra calories. The combination reminds me of that old song, "Put the Lime in the Coconut," only in reverse.