Grilled Steak Tacos with Carrot Pepper Slaw

Name: Grilled Steak Tacos with Carrot Pepper Slaw
Ingredients: 1/2 cup nonfat plain Greek yogurt; 1 clove garlic, finely grated; 2 tablespoons chopped fresh cilantro, plus leaves for topping; 1 large white onion, cut into rings; 1 teaspoon extra-virgin olive oil, plus more for brushing; Kosher salt; 1 pound sirloin steak; 4 medium carrots, shredded; 1 large red bell pepper, cored, seeded and grated; 1 to 2 teaspoons minced jalapeno pepper (seeded for less heat); 3 tablespoons fresh lime juice, plus lime wedges for serving; 12 corn tortillas