
Go into any household in south Louisiana and you'll find two or three different blends of Cajun seasoning brands. No one brand is exactly alike.
Boiled seafood in southern Louisiana tends to be spicier than that found in other parts of the country. Homemade crab boil recipes call for abundant amounts of hot sauce, cayenne pepper, salt, bay leaf, lemon, and garlic. Mustard seeds, coriander seeds, and allspice are popular extra options. Many people will start with a commercial crab boil product and then supplement it with extra pepper. The leading commercial product is Zatarain's which comes in two forms. One is a mesh bag with seasonings inside that will steep into the water. The second is a liquid concentrate that can be added directly to the water. The concentrate form can also be used as a flavor enhancer for soups. Other regional crab boil companies are Tony Chachere's, and Rex Crab Boil. Note that even when boiling shrimp or crawfish, most recipes call for adding crab boil packets as a seasoning.
1/4 cup fresh lemon juice
3 tablespoons drained capers
1 shallot, minced
1 tablespoon Creole mustard
1/2 tsp dried crushed red pepper
1/2 cup olive oil
1/2 cup chopped fresh basil
1 lbs. uncooked large shrimp, peeled, deveined
2 zucchini, cut into 1/2-inch cubes (about 2 cups)
8 cups mixed baby greens (about 5 ounces)
Freshly grated Parmesan cheese (optional)

Preparation:
Whisk lemon juice, capers, shallot, mustard, and dried red pepper in medium bowl. Whisk in oil, then basil. Season dressing to taste with salt and pepper. Bring large saucepan of salted water to boil. Add shrimp and cook 1 minute. Add zucchini; continue cooking until shrimp are opaque in center and zucchini is crisp-tender, about 1 minute longer. Drain. Rinse under cold water and cool. Drain well. Transfer to large bowl. Add 1/3 cup dressing and toss to coat. Season to taste with salt and pepper. Toss greens in large bowl with enough dressing to coat. Divide greens among 4 plates. Arrange shrimp and zucchini atop greens. Serve, passing Parmesan cheese separately, if desired.