In a bowl mix the beans, corn, cream cheese, cheddar, scallions, and season with salt and pepper.
Place the wonton wrappers on a cutting board. Lightly dampen the edges with water. Place 1 teaspoon of filling in the center of the wrapper. Fold the corners to the center and press them together to seal. Then set aside to dry for 2 to 3 minutes.
Place on a parchment paper-lined baking sheet lightly greased with cooking spray; lightly coat the tops of the wontons with additional cooking spray.
Bake golden brown and crispy, about 8 - 12 minutes.
In a bowl whisk together the mayo and sriracha. Season with salt to taste.