CROCKPOT SHRIMP CREOLE

CROCKPOT SHRIMP CREOLE 1 c finely chopped onion 1/2 c chopped celery 1 med gr pepper chopped 14 oz canned broken up tomato with juice 2 tbsp ketchup 10 oz canned sliced mushrooms,drained 1 tsp salt 1/4 tsp pepper 1/4 tsp garlic powder 1/4 tsp cayenne pepper 1 tsp lemon juice 1 tsp parsley flakes 1 lb cooked fresh (or frozen, thawed) shelled shrimp (or 2 cans, 4 oz,drained) I thickened with a bit of cornstarch and water. Put onion,celery and green pepper in slowcooker. Combiine next 9 ingred in a bowl. Stir and add to the slowcooker. Cover and cook on low for 6 hr or on high for 3-4 hrs. Add shrimp. Stir. Cook on high for 20-30 min until shrimp is heated through. Stir before serving. Serve with rice