1. Cook the pasta in salted boiling water until al dente. Drain and reserve 1 cup of pasta water.
2. Heat olive oil in a skillet over medium-high heat. Sear chicken breasts seasoned with salt and pepper for 5-7 minutes on each side until cooked through. Remove and let rest.
3. In the same skillet, sauté onion for 3-4 minutes, then add garlic and sauté for another 30 seconds.
4. Add diced bell peppers and cook for 5 minutes. Stir in cumin and chili powder, cooking for 1 minute.
5. Slice the chicken and return it to the skillet with the vegetables.
6. Pour in heavy cream and stir. Add reserved pasta water as needed for consistency. Let simmer.
7. Fold in cooked pasta and cheddar cheese until melted. Adjust seasoning as needed.
8. Serve warm, garnished with cilantro.
Notes
For variations, consider adding black beans for a vegetarian option or adjusting the spice level with jalapeños.