Teriyaki Beef Stir Fry

Bahan-bahan (3 porsi)

• 1 pound sirloin steak (cut into thin, bite-sized pieces)
• 1 tablespoon low-sodium soy sauce
• 1/2 teaspoon ground black pepper
• 1 tablespoon extra-virgin olive oil (divided)
• 1 red bell pepper (cored and cut into thin slices)
• 3 cups chopped mixed vegetables of choice (such as broccoli, snap peas, or carrots)
• 1 (8-ounce) can sliced water chestnuts (drained)
• 3 medium green onions (finely chopped; divided)
• 1 tablespoon sesame seeds (optional)
• Prepared brown rice
• 1/3 cup low-sodium soy sauce
• 1/4 cup water
• 3 tablespoons pure maple syrup
• 1 tablespoon rice vinegar
• 1 tablespoon minced garlic
• 1 tablespoon minced ginger
• 1/4 teaspoon red pepper flakes (plus additional to taste)
• 1 tablespoon cornstarch