Pound chicken breasts until they are even in thickness, about 3/4" thick
In a small bowl, combine spices. Rub seasonings on both sides of the chicken breasts.
In a large skillet, melt butter over medium heat. Add garlic, onion and saute for 1-2 minutes untill fragrant.
Add chicken and 1 tbsp of lime juice to pan, and sear for about 5 minutes each side. Remove chicken from skillet and set aside on a plate.
Pour chicken broth in pan and scrape brown bits off the bottom of pan to deglaze. Stir in lime juice and heavy cream.
Increase heat to high and bring to a low boil stirring constantly to make sure cream does not scald or burn to the bottom. Once boil starts, reduce heat and continue stirring until sauce has slightly thickened.
Once thickened, whisk in shredded cheese and sour cream.
Return chicken breasts to pan, cover and cook on low until chicken is completely cooked through, stirring occasionally, about 5 minutes.
Serve over rice or with vegetable of choice.