Shrimp Creole

4 Tbsp vegetable oil 4 Tbsp flour 1 medium onion , chopped ½ medium to large bell pepper, chopped 2 stalks celery (leaves included), chopped 3 cloves garlic ,[...]

1/3 cup olive oil (divided) 2 Tbsp butter 2 cups chopped onions 1 cup chopped green bell pepper 1 cup chopped celery 4 cloves garlic , finely minced 2 15 oz[...]