Heat oil in a medium skillet over medium-high. Cook tomatoes, stirring occasionally, until slightly charred, 7�10 minutes. Reduce heat to medium-low and continue to cook, stirring occasionally, until saucy and juices are thickened, 6�8 minutes. Let cool slightly.
Transfer tomatoes to a blender and add onion, garlic, chile, cilantro, and lime juice. Pur�e on high until mostly smooth but still with some texture; season salsa with salt.
Do Ahead
Salsa can be made 2 days ahead. Cover and chill. |