Step 1

Rinse, pat dry and cut the sirloin steaks into 1-inch pieces.

Step 2

Whisk together the teriyaki sauce, brown sugar, olive oil, chopped parsley, 3 clove minced garlic and red pepper flakes. Place into a plastic storage bag and refrigerate for several hours or overnight.

Step 3

To prepare, remove the sirloin tips from the marinade. Discard the marinade.

Step 4

Heat a few drizzles of olive oil in a large cast iron or heavy skillet over medium-high heat. Add the sirloin tips. Cook for 5-7 minutes until browned and to your preferred doneness. Season with 1 tsp of steak seasoning. Remove from the pan to a platter to rest.

Step 5

Add the sliced bell peppers and onion wedges to the pan. Season with 1 tsp steak seasoning and black pepper to your taste. Add additional olive oil if needed. Cook for 5 minutes scraping the brown bits from the bottom of the skillet. Cook until browned and crisp tender.

Step 6

Add the sirloin beef tips back to the pan. Stir until heated through then serve.