In a large bowl combine shrimp, corn, green onions, sriracha, garlic,1/4 cup of basil, and almost all of the tomatoes (reserve a few for topping each plate at the end). Gently toss to combine.
Heat a large skillet over high heat. Add olive oil to the pan, swirling to coat. Add chorizo and cook for 5-7 minutes. Add in the shrimp and corn mixture. Cook for 6-10 minutes, stirring frequently, until the shrimp is pink and cooked through.
Top each serving with a few fresh tomato halves, the remaining chopped basil, and a lemon wedge.
Notes
Recipe adapted from Cooking Light - http://www.cookinglight.com/food/recipe-finder/myplate-inspired-salads/shrimp-chorizo-corn-salad_2