Sweet potato fry nachos

Ingredients

• 3 sweet potatoes
• 2 tablespoons cornstarch
• 1 teaspoon chili powder or chili flakes
• 2 cloves of garlic
• 1/2 red onion
• 1 red bell pepper
• 1 jalapeño pepper
• 1 can red kidney beans (15 ounce)
• 1 cup corn
• 1 tablespoon dried oregano
• 1 tablespoon ground cumin
• sea salt
• olive oil