Obviously, before discarding a can fancy roasted tomatoes, you may need to discard your current wife. She's likely not without a speck or two.
Just as Poblano, Bell and other "peppers" can be "roasted" oven, stove top or grill....
There will be black specks, more than specks to start with.... Tomatoes can be treated the same way. Yum, good! Then there's smoking ripe jalapenos, from which cometh "Chipotles".