Over medium heat saute onions, bell peppers and andouille sausage n the canola oil until the vegetables are softened and the sausage is browned, about 5-6 minutes
Add the sliced garlic and saute for 30 seconds
Stir in the flour, continue stirring for 1 minute
Pour in the chicken broth, Worcestershire sauce and lemon juice.
Let come to a simmer stirring
Add fresh rosemary
Toss the creole seasoning with the shrimp
Stir the shrimp into the sauce
Simmer until the shrimp turn pink and the sauce has thickened about 5-6 minutes
Serve over rice or grits