1. Pat the chicken cubes dry with paper towels and season them generously with salt and pepper.

2. Heat the olive oil in a large skillet or Dutch oven over medium-high heat. Add the onion and cook until softened, about 5-7 minutes.

3. Stir in the garlic and jalapenos, and cook for 1 minute until fragrant.

4. Add the seasoned chicken cubes and cook until browned on all sides.

5. Stir in the red bell pepper and cook for 3-5 minutes until slightly softened.

6. Add the diced tomatoes, black beans, corn, and chicken broth. Stir everything together well.

7. Sprinkle in the chili powder, cumin, smoked paprika, and cayenne pepper (if using). Taste and adjust the salt and pepper as needed.

8. Bring the mixture to a simmer, then reduce the heat to low, cover, and cook for 20-25 minutes, or until the chicken is cooked through and the sauce has thickened slightly.

9. Serve the Spicy Jalapeno Chicken over a bed of rice or quinoa, and top with your desired toppings.