Preheat the oven to 425°F (220°C) or preheat your air fryer per manufacturer instructions.
Heat 1 tablespoon olive oil in a large skillet over medium heat.
Add the chicken pieces, 1 teaspoon ground cumin, 1 teaspoon chili powder, and 1/4 teaspoon cayenne pepper; cook, stirring occasionally, until the chicken is cooked through.
Stir in the chopped red bell pepper, 1 cup frozen corn, 2 cups chopped kale, and 1 cup salsa; cook until the peppers are tender and the kale is wilted.
Remove the skillet from the heat and stir in the chopped green onions and 1/4 cup chopped parsley; season with salt and pepper to taste. Let the filling cool slightly.
Lay an egg roll wrapper on a clean surface. Spoon about 1–2 tablespoons of filling into the center of each wrapper.
Brush the wrapper edges with a little water, fold the bottom corner over the filling, fold in the sides, and roll tightly to seal (follow package folding instructions if needed).
If baking, place the egg rolls seam-side down on a parchment-lined baking sheet and brush each with melted butter; bake for about 15 minutes or until golden brown.
If air frying, arrange egg rolls in a single layer without overcrowding and air fry at 400°F (200°C) for 10–12 minutes, turning halfway, until golden and crispy.
Serve the egg rolls hot with your favorite salsa on the side.