Pepper Steak with Teriyaki Rice

WHAT YOU'LL NEED

• 1 lb. sirloin steak
• 2 Tbsp. vegetable oil
• 1 large orange, red or yellow bell pepper, thinly sliced
• 1 medium onion, thinly sliced
• 2 Tbsp. balsamic vinegar
• 1 package Knorr® Asian Sides™ - Teriyaki Rice, prepared according to package directions