Grilled Steak Tacos

Ingredients (19)

• 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
• Corn tortillas
• 1/2 small red onion
• 1 large avocado
• 1/3 cup queso fresco
• Chopped cilantro
• Lime wedges