Creating Southwest Chicken Alfredo is simple when you follow these steps:

1. Season Chicken: Begin by seasoning the chicken breasts with garlic powder, onion powder, smoked paprika, chili powder, cumin, salt, and pepper on both sides.
2. Cook Pasta: In a large pot, bring salted water to a boil. Cook fettuccine according to package directions until al dente. Drain and set aside.
3. Sauté Chicken: In a large skillet, heat the olive oil over medium heat. Add the seasoned chicken breasts and cook for about 6-7 minutes on each side, or until fully cooked. Remove from skillet and let rest for a few minutes.
4. Make Sauce: In the same skillet, lower the heat and pour in the heavy cream. Stir and allow it to simmer for a couple of minutes.
5. Add Cheese: Gradually whisk in the grated Parmesan cheese until the sauce is smooth and creamy.
6. Combine Ingredients: Slice the chicken into strips and add it to the sauce. Then, incorporate the cooked fettuccine into the skillet, tossing to coat everything evenly.
7. Serve: Plate the dish, and garnish with fresh cilantro and lime wedges. Optionally, give a final sprinkle of Parmesan cheese.

These straightforward steps will help you recreate this delicate and creamy dish with ease!