Grilled Steak Fajitas

For the Steak:

• 16 ounces flank steak or skirt steak
• Juice of 2 limes
• Zest of 2 limes
• 1 tablespoon kosher salt
• 1 teaspoon granulated sugar
• 1/4 teaspoon black pepper
• 1/2 teaspoon chili powder
• 1/2 teaspoon cumin
• 1/2 teaspoon paprika
• 1/2 teaspoon dried oregano
• 1/8 teaspoon ground cinnamon

For the Veggies:

• 1 red bell pepper, seeded and thinly sliced
• 1 yellow bell pepper, seeded and thinly sliced
• 1 green bell pepper, seeded and thinly sliced
• 1 red onion, thinly sliced
• 1 tablespoon olive oil
• 1 tablespoon lime juice
• 1/4 teaspoon chili powder
• 1/4 teaspoon cumin
• 1/4 teaspoon paprika
• 1/8 teaspoon garlic powder
• Salt and pepper, to taste

For Serving:

• 8 flour or corn tortillas
• Optional Toppings: tomatoes, avocado, sour cream, lettuce, cheese, cilantro, pico de gallo