In a food processor or blender, lightly pulse onion & tomato until just chunky.
Mix in poblano pepper. Add a squeeze of lime and a pinch of salt and stir together.
Serve over Black Bean Burgers or with tortilla chips.
Notes
* To roast poblanos, set them on a foil lined pan and broil {500 degrees} for about 7-10 minutes or until skins are blistered. Cool slightly, then peel off charred skin and discard.