橄欖油 olive oil 2 tbsp, 大蝦shrimp (去殼)1 pound, 洋蔥onion, 切碎乾培根dried bacon 1 tbsp, 碎核桃saltless walnut, 鹽和黑胡椒salt and pepper, 蒜末garlic (切碎), 麵粉flour 2 tbsp, 植物鮮奶heavy cream 1 cup, 鮮奶或雞高湯chicken broth 1/2 cup, 西洋香菜parsley (新鮮或乾)1tsp, 帕瑪森起司粉parmesan cheese 1/2 cup