Preheat the oven to 425°F. Spray a 12 inch round pizza pan with cooking spray and press the pizza crust evenly onto the pan.
In a stove top skillet over medium-high, brown sausage in 1-2 Tbsp olive oil. Cook for 3-4 minutes, then use a slotted spoon to remove from pan.
Toss the shrimp with the remaining ¼ teaspoon of creole seasoning, then saute in the sausage drippings for about 20 seconds. Do not over cook, remove from the heat.
To assemble pizza: In a small bowl, mix ½ teaspoon creole seasoning with pizza sauce. Spread over crust. (Adjust amount of seasoning to your taste)
Sprinkle with ½ cup of shredded pepper jack cheese, andouille and arrange shrimp evenly on top. Sprinkle with the remaining cup of shredded pepper jack cheese and Parmesan cheese.
Place into the oven and bake for 16-18 minutes, until the cheese is bubbly and the crust is golden. (Adjust cooking time if using homemade pizza dough. Link in Cook's notes)
Sprinkle with the sliced fresh basil and serve.