Steak Tacos

Name: Steak Tacos
Prep time: 40 min
Cook time: 10 min
Total time: 50 min
Cuisine: Mexican
Ingredients: 1 1/2 pounds flank steak; Juice of 2 large limes; Zest of 1 large lime; 2 teaspoons kosher salt; 1/2 teaspoon black pepper; 1 teaspoon granulated sugar; 1/2 teaspoon chili powder; 1/2 teaspoon cumin; 1/2 teaspoon paprika; 1/2 teaspoon garlic powder; 1/2 teaspoon dried oregano; 1/8 teaspoon ground cinnamon; Olive oil, (for grill); Corn tortillas; 1/2 small red onion (chopped); 1 large avocado (sliced); 1/3 cup queso fresco; Chopped cilantro, (for serving); Chimichurri sauce, (for serving); Lime wedges, (for serving)