Heat the oil in a large pot set over medium heat. Add the onion, jalapeno and bell pepper. Cook for about 4 minutes, until softened. Add the garlic and cook for 1 minute further until fragrant.
Add the ground turkey to the pan and cook, stirring constantly to break up meat, for about 5 minutes or until cooked through.
Stir in the chili powder, cumin and oregano.
Add the broth, kidney beans, pinto beans, corn, crushed tomatoes and tomato paste.
Increase heat to high and bring to a boil. Reduce the heat to low and simmer, stirring occasionally, for about 20 minutes.
Season with salt and pepper to taste. Serve warm, garnished with optional toppings if using.