3  jalapeños
Extra-virgin olive oil
1 large onion, half cut into 1/2-inch dice, half sliced 1/4 inch thick
1 clove(s) garlic, minced
1 pound(s) tomatillos, husked and chopped
1  Hass avocado, diced
0.5 cup(s) chopped cilantro
1 tablespoon(s) fresh lime juice
Salt and freshly ground pepper
2  links of fresh chorizo
0.5 pound(s) queso panela or halloumi cheese, cut into squares
1  1 1/2-pound flank steak