Sous Vide Flank Steak Fajitas

Ingredients

• 1 pound beef Flank Steak
• 2 red bell peppers, trimmed, seeded, thinly sliced
• 1 green bell pepper, trimmed, seeded, thinly sliced
• 1 Vidalia onion, halved and sliced thin
• 1 clove minced garlic
• 1 tablespoon olive oil
• 1/2 teaspoon kosher salt
• 2 teaspoons freshly ground black pepper
• 4 6-inch corn tortillas
• prepared guacamole (optional)
• 1/2 cup water
• 1/3 cup fresh lime juice
• 1/2 tablespoon fajita seasoning
• 1/2 tablespoon garlic powder