Gather up all the veggies you can get your hands on...tomatoes, mix of peppers (we used green chiles, cayenne, and jalapeno), onion, garlic...
Then put all your veggies on the grill and let them get good and smokey.
Peel all the skins off of the peppers.
Put everything in a blender with lime juice and salt and pepper to taste.
Chill and let the flavors meld and then serve.