Preheat oven to 350F. Cut shrimp into small 1/2 inch pieces. Saute onions in chicken stock over medium heat for about 5 minutes, stir-fry shrimp in briefly. Cut French bread loaf in half, lengthwise. Take the top half and scrape out the center, so it looks like a boat. Spread the crumbs on a cookie sheet. Toast these crumbs and the hollow loaf until browned. Combine crumbs with a pinch of cajun seasoning and paprika sauteed shrimp and onions; mix thoroughly. Stuff mixture into hollowed half of loaf and spread cheese over the top. Bake for 3-5 minutes or until chees is melted. Serves 6. Calories 371.4, fat 10.0 grams, 24.6% fat.