Mardi Gras Pasta Salad (Colorful Cajun Party Side)

Ingredients

• 12 oz (340 g) rotini pasta
• 8 oz (225 g) fully cooked andouille sausage, sliced into half-moons
• 1 tablespoon olive oil
• 1 green bell pepper, diced
• 1 yellow bell pepper, diced
• 1 cup (150 g) corn kernels, thawed if frozen
• 2 celery ribs, finely diced
• 1/2 cup (75 g) finely diced red onion
• 1/3 cup chopped fresh parsley
• 3 green onions, thinly sliced
• 3/4 cup (170 g) mayonnaise
• 2 tablespoons Creole mustard
• 2 tablespoons lemon juice
• 1 tablespoon pickle juice or apple cider vinegar
• 1 1/2 teaspoons Cajun seasoning, plus more to taste
• 1/2 teaspoon garlic powder
• 1/4 teaspoon black pepper
• Salt, to taste
• Hot sauce, optional