Boil noodles (about half of a small bag) 15 minutes. Drain, do not rinse. Set aside covered. Place oil and margarine in a skillet and heat until melted, and remove from heat. Add garlic and herbs, stir. Peel shrimp, chop bell pepper into strips. Cut snow peas into thirds. Slice purple onion into quarter-inch pieces. Make small spears of broccoli. Cut the tomatoes into thick slices.
Return pan to heat. Bring to sizzling. Saute shrimp until pink. Remove shrimp. Add all other vegetables. Cook stirring constantly for two minutes. Return shrimp, and stir well. Add Cajun seasoning to taste. Stir in sour cream a spoonful at a time. Add noodles and mix well. Parmesan may be added if desired.
Cajun Country -- New Iberia, Louisiana