Make this recipe a recipe that people in that category can eat. categories: ['low_carb'], recipe: roux: in small skillet, mix flour and oil together to make a paste; over medium heat, stir constantly with a wooden spoon until the color of caramel -- do not let burn; set aside. in a dutch oven, add all ingredients except crawfish and green onions. bring to a boil, reduce heat and simmer 2 hours or until vegetables are tender. add roux, stirring occasionally and cook for 30 minutes. add crawfish and green onions and cook for 10 minutes longer. serve over a bed of rice.

Target recipe: heat oil and butter in a large skillet over medium high heat. stir in onion, green onion, green pepper and celery; cook until transparent. mix in crawfish and tomato paste; cook for 10 minutes. pour chicken broth into skillet. in a small bowl, dissolve cornstarch in water. stir dissolved cornstarch into crawfish mixture and cook until thickened, about 35 minutes. serve over rice.