In nonstick pan, cook steaks as directed on package, chopping steak with utensil as you cook; set aside.
Add canola oil and sauté onions and peppers until slightly tender. Add ketchup, water, vinegar, chili powder and Worcestershire sauce; mix well. Stir steak into onion and pepper mixture. Cover and simmer 10 minutes.
Serve on hard rolls. May also be served over rice.