Preheat oven to 425 °F
Spray a baking sheet with cooking spray and set aside.
Cook the Spinach according to package instructions (microwave). Drain, rinse, and squeeze excess moisture out. Add to large mixing bowl.
Cook the Corn according to package instructions (microwave). Drain and rinse. Add to large mixing bowl.
Drain and rinse the black beans. Add to mixing bowl.
Drain and rinse the green chiles. Add to mixing bowl.
Combine cumin, salt, chili powder, black pepper, and cayenne in a very small bowl. Mix well.
Stir all of the ingredients in the large mixing bowl, then sprinkle the spices in. Mix well.
Add shredded cheese to the mixture. Mix well.
Put a tiny bit of water in the bowl you used for the spices. You will use this to "seal" the eggrolls.
Place about 2 spoonfuls of mixture into an eggroll, and wrap it up: flip up the bottom first, then the sides, then fold over the top and add a little dab of water to "seal" the eggroll.
Repeat for each eggroll, and place them on a sprayed baking sheet. Bake at 425 for 6 minutes. Flip the eggrolls, and bake another 6 minutes. Let cool for a few minutes, as they will be HOT!