Boil the pasta in lightly salted water (boil in a medium-sized pot, with 1 tsp of salt) until it's al dente.
3 cups dry elbow macaroni pasta, 1 tsp salt
Drain the pasta once done, and rinse it under cold water to stop the cooking process.
In a large bowl. combine the mayonnaise, mustard, and lemon juice. Mix until well combined.
1 cup mayonnaise, 2 tbsp yellow mustard, 1/4 cup lemon juice
Now sprinkle in the cajun seasoning and old bay seasoning. Mix well.
1 tsp cajun seasoning, 1 tsp old bay seasoning
Add in the minced garlic.
1 tsp minced garlic
Add in the seafood, and toss or stir in the bowl until it's covered with the dressing.
1 lb cooked shrimp, 1 lb imitation crab meat
Add in the onions, celery, and olives.
1/4 cup chopped green onion, 1/2 cup sliced black olives, 1/3 cup diced celery
Next add in the elbow macaroni pasta, and fold all of the ingredients.
Sprinkle in the dried parsley flakes and fold the ingredients.
1 tbsp parsley flakes
Cover the pasta, and refrigerate until it's nice and cold.
Serve and enjoy!