14 oz 398mL canned diced tomatoes, drained
1 tbsp 15mL ketchup
1 tsp 5mL chili powder
2 tsp 10mL brown sugar, packed
1 tsp 5mL salt
1/8 tsp 0.5mL cayenne pepper
2 tsp 10mL cooking oil
1/2 small green pepper, cut into strips
1/2 small red pepper, cut into strips
1/2 small yellow pepper, cut into strips
1/3 cup 75mL thinly sliced celery
1/2 cup 125mL sliced onion
1 lb 454g frozen cooked medium shrimp, thawed under cold running water